Best 135° Drill Bits in 2026

Standard drill bits often fail or wander when you hit hard metals, leaving frustrating divots in your workpiece. The COMOWARE Impact Drill Bit Set solves this by combining HSS construction with a premium titanium finish that resists rust and wear. During testing, the 135-degree split point tip was a standout, preventing the bit from walking and ensuring an immediate, clean start. The parabolic flute design is equally impressive, moving chips away rapidly to keep friction and heat build-up to a minimum. Whether you are an HVAC pro or a DIYer tackling aluminum, copper, or wood, the 1/4 inch hex shanks handle heavy impact torque without breaking a sweat. It is a versatile, high-speed solution that feels built for real-world job site demands.

Most people assume a single drill bit is a minor expense, but this Irwin cobalt alloy bit is actually a specialized powerhouse for heavy-duty metalwork. I found that the 8% cobalt content makes a massive difference when you are fighting through hardened steel or abrasive alloys that would normally melt a standard bit. The 135-degree split-point tip is the real hero here. It bites into the metal immediately, which completely stops that frustrating tendency to 'walk' or slide across your workpiece before the hole is started. Because it is built from industrial-grade high-speed steel, it handles the heat of intense drilling without losing its edge. It is a reliable, heavy-duty tool for anyone who needs precision in tough materials.

Why settle for bits that wander across your workpiece the moment you pull the trigger? This DEWALT 20-piece set solves that frustration with a 135-degree split point tip designed specifically to kill bit walking. Built from high-speed steel, these bits handle wood, metal, and plastic with ease, thanks to a parabolic flute design that boosts overall strength. I noticed the tapered web design really helps prevent the snapping that usually plagues thinner bits during heavy drilling. The black oxide and gold coating provide a solid defense against rust, while the 3-flats shank ensures they stay locked tight in your chuck without spinning out. Even the small details, like the size markings on the shank and the secure soft-grip storage case, make this a professional-grade kit that stays organized and ready for the next job.

Heavy-duty metalworkers and serious DIYers need this DEWALT drill bit to stop fighting their tools and start making precise progress. I found that the 135-degree split point is a total game-changer because it bites into the material immediately, which completely eliminates that frustrating bit of 'walking' across the surface before the hole actually starts. The black oxide coating adds a layer of toughness for better wear resistance, while the 31-degree helix strikes a perfect balance—it's efficient enough to handle wood and metal but avoids being overly aggressive. Even the parabolic flute design helps significantly with chip ejection, keeping your workspace cleaner and the drilling process smoother during long sessions.

You are halfway through a heavy-duty fabrication project when your standard bits start smoking and dulling against a piece of high-tensile steel. That is exactly where this Irwin cobalt set proves its worth. Because these bits are forged from M-42 5% cobalt alloy steel, they handle super abrasive metals without breaking a sweat. I noticed the 135-degree split point makes a massive difference, allowing for easy penetration without the frustrating work hardening that ruins lesser bits. The heavy-duty spiral flutes keep the debris moving with fast chip ejection, while the shorter cutting lips keep torque under control. It is a professional-grade kit that stays organized in a rugged metal index case, making it a reliable companion for any serious metalworking task.

You are staring down a thick piece of hardened steel, knowing that a standard bit is likely to wander or dull before you even make a dent. This Norseman 29-piece set is designed specifically to eliminate that frustration during heavy-duty mechanical work. The 135-degree split point is a game changer for accurate centering, meaning you won't be fighting to keep your hole on target. Because every aspect—from the flutes to the drill diameter—is precision ground, the penetration feels remarkably smooth rather than forced. The high-molybdenum tool steel construction paired with a gold oxide finish provides the durability needed for professional environments. Plus, the three-flats on the shank ensure these bits stay locked securely in your chuck without slipping during high-torque applications.

Most people assume a thinner oxide coating means a weaker tool, but this gold oxide treatment on the Drill America cobalt bit is actually a strategic advantage. By keeping the surface treatment thinner than standard black oxide, it maintains performance levels nearly identical to uncoated tools while providing essential protection. This 6-inch extension bit is a lifesaver when you need extra reach to penetrate high-tensile materials like titanium, inconel, or stainless steel. I found the 135° split point tip to be a game-changer because it bites immediately, preventing that frustrating bit-walking that ruins precision work. Since it features a standard round shank, it integrates seamlessly into almost any tool holding system you already have in your shop.

Metalworkers tackling stainless steel need to ditch standard HSS bits and upgrade to these Drill Hulk cobalt steel drivers immediately. I found that the 5% cobalt composition makes a massive difference when the friction starts generating intense heat, as the high red hardness prevents the bit from softening mid-drill. These jobber length bits feature a 135-degree split point and a 3-flat shank for stability, which is crucial when you're working through stubborn, hard materials. Unlike cheaper alternatives that lose their edge once the coating wears off, the hardness in these is uniform throughout the entire material. This means you can repeatedly sharpen them to maintain a precise cutting edge, making the 12-pack a much smarter long-term investment for any serious workshop.

Most budget-friendly bit sets feel like they will dull after a single project, but the Neiko 11401A manages to defy that low-cost stigma. These stubby bits are a lifesaver when you are wedged into a tight corner or using a right-angle drill where a standard bit simply won't fit. Because they are crafted from molybdenum 4241 high-speed steel with evenly distributed carbides, they bite into everything from plywood to MDF without excessive chatter. The 135-degree tip design ensures a clean, fast cut through even the hardest woods. I particularly like that the 2.3-inch length provides just enough clearance for difficult spaces while the 1/4-inch hex shank makes swapping them into a quick-change chuck completely seamless. It is a specialized addition to any woodworker's kit.

The Irwin Black Oxide Aircraft Twist Drill Bit stands out because of its specialized M-42 8 percent cobalt high speed steel construction designed for extreme abrasive resistance. I found that this bit handles tough metals with surprising ease, thanks largely to the 135-degree split point that cuts through materials without the frustrating work hardening often seen with cheaper bits. The heavy duty spiral flute design does a fantastic job of ejecting chips quickly, which keeps the drilling process smooth and prevents overheating. I also noticed that the shorter cutting lips significantly reduce torque, making it much easier to maintain control when working through high tensile strength materials. It is a durable, professional-grade tool that feels built to last through heavy-duty applications.

Most DIYers settle for standard high-speed steel bits that dull the moment they hit a piece of stainless steel, but the COMOWARE Cobalt Set is built for much harsher realities. I found that the 5% cobalt M35 composition makes a massive difference when you are drilling through stubborn materials like cast iron or titanium alloys. The 135° split point is a game-changer because it bites into the metal immediately without that annoying tendency to wander across the surface. With 115 pieces ranging from fractional to numbered sizes, you have almost every increment you could need for professional-grade work. Even the storage is thoughtful, featuring an indexed metal case that keeps your workspace from turning into a chaotic mess of loose bits.

The first time you feel the 135° fast-cutting tip bite into a piece of aluminum, you’ll realize this isn't your standard hardware store kit. These HURRICANE drill bits are engineered from high speed steel and finished with a titanium coating that does a heavy lift by reducing heat buildup and preventing rust. I was particularly impressed by how the bits automatically center themselves, allowing for quick penetration through fiberglass or cast iron without needing to lean into the drill. With 230 pieces ranging from 3/64" all the way up to 1/2", you won't be hunting for a specific size mid-project. The included hard plastic storage box keeps this massive collection organized and portable, making it a reliable companion for everything from woodworking to metalworking.

Any contractor tired of drill bits wandering across a workpiece needs this DEWALT black oxide bit in their toolbox immediately. I found that the 135-degree split point tip is a game changer because it drills on contact, virtually eliminating that frustrating 'walking' phase when you first touch the material. Whether I was working through wood, plastic, or metal, the parabolic flute design and 31-degree helix kept chip ejection smooth without being overly aggressive. The tapered web design adds a layer of durability that prevents breakage, while the 3-flat shank ensures the bit stays locked tight in the chuck without spinning out. It is a rugged, professional-grade tool that feels built to last through heavy-duty cycles.

You are halfway through a heavy-duty fabrication project when the drill bit starts to smoke against a thick slab of stainless steel. Instead of snapping or dulling instantly, this BOSCH cobalt bit keeps its composure. The thick web design provides the kind of rigidity you need to prevent walking or wobbling in tough, abrasive materials. It is specifically engineered to handle extreme heat, maintaining its integrity even when temperatures climb toward 1,100 degrees Fahrenheit. Whether you are working through high-carbon steel, cast iron, or even titanium, the 135-degree drill point and surface-hardened finish make light work of demanding metals. It is a reliable, no-nonsense tool for anyone who needs to drill through more than just standard soft metals.

You are halfway through a critical fabrication project when you hit a stubborn slab of stainless steel that has already chewed through two standard HSS bits. This is exactly where the HYMNORQ M35 cobalt steel set earns its keep. The molybdenum and cobalt alloy reaches a Rockwell hardness of 67, allowing it to slice through cast iron and stainless steel without the immediate heat fatigue that kills cheaper bits. I found the 135° quick-cut points particularly impressive because they bite into the metal immediately, eliminating that frustrating 'walking' effect that usually requires a center punch. While you must be diligent about adjusting your RPMs to avoid burnout, the twelve-fold increase in lifespan compared to standard bits makes this a much smarter investment for any serious metalworking setup.

The first time you slide one of these bits into your drill, you will notice the substantial weight and premium feel of the W4 high-speed steel construction. Unlike standard sets that struggle with tougher surfaces, these bits feature a 135-degree split point and a self-centering design that prevents the dreaded bit-walking on metal. I was particularly impressed by the combination of an amber coating and black oxide finish, which helps manage heat during heavy-duty tasks. Whether you are boring through stainless steel, titanium alloy, or dense wood, the fully ground twist design keeps friction low and performance high. It is a comprehensive, professional-grade kit that covers everything from tiny 1/16" holes to substantial 1/2" diameters, all neatly organized in a durable storage case.

The amoolo 1/8-inch drill bit set is a standout choice for DIY enthusiasts needing reliable precision without a heavy industrial price tag. I was particularly impressed by the use of 4341 high-speed steel, which provides a noticeable edge in hardness over the standard 4241 HSS found in most budget kits. The titanium coating really helps manage heat, and the 135-degree split point is a game changer because it bites into the material immediately, eliminating that annoying bit-walking that usually requires a center punch. Whether you are working through aluminum alloy or drilling into wood and plastic, the fully ground spiral grooves clear debris fast enough to keep the process smooth. It is a solid, well-organized kit for household repairs and small-scale metalwork.

Heavy-duty contractors and serious DIYers who are tired of snapping bits mid-job need the Milwaukee Thunderbolt set in their toolbox immediately. These aren't your standard, flimsy bits. They feature a significantly thicker core designed for extreme durability and a much longer service life. I found the 135 split point tip to be a game-changer because it bites into the material instantly without that annoying walking or skidding. The parabolic flute design does an excellent job of clearing out chips and debris quickly, which keeps the temperature down and prevents overheating. Plus, the 3-flat secure grip shank ensures the bit stays locked tight in your chuck, eliminating the frustration of slipping during high-torque applications.

The Norseman Super Premium Magnum 29 Piece Drill Bit Set stands out through its heavy-duty high molybdenum steel construction that refuses to quit. After putting these through their paces, the first thing you notice is the precision of the 135-degree split point, which prevents that frustrating walking across the metal surface when you start a hole. These bits feature a specialized gold and black oxide finish for enhanced durability, and the round shank with three flats ensures they stay locked tight in your drill chuck without slipping. Everything arrives organized in a high-visibility orange Ultradex case, making it easy to grab exactly what you need on a busy job site. It is a professional-grade, American-made kit that feels significantly more substantial than standard hardware store alternatives.

This STROTON cobalt drill bit set is a heavy-duty essential for anyone tired of burning through cheap bits when tackling stainless steel. The M42 8% cobalt steel construction reaches a massive 68-70 HRC hardness, meaning these tools handle heat and wear far better than standard high-speed steel. I noticed the 135-degree split point design is a game changer. Instead of the bit grinding sluggishly through metal, it actually slices through, producing long iron chips that indicate a clean cut. While the upfront cost is higher than basic sets, the ability to run three to five times faster makes the cost per hole incredibly low. With 19 pieces ranging from 1mm to 10mm in 0.5mm increments, you have a specialized tool for everything from aluminum to hard metals.

After weeks of use in my workshop, these Amoolo cobalt bits have proven themselves to be a serious upgrade over standard HSS sets. The 5% cobalt content in the M35 steel makes a noticeable difference when you're pushing through stubborn materials like stainless steel or cast iron. I was particularly impressed by the 135° split point, which bites into the metal immediately without the annoying bit-walking that usually requires a center punch. The fully ground spiral groove does a great job of clearing out debris, keeping the temperature down during heavy drilling. While you still need to manage your speed and pressure to avoid overheating, having twenty essential sizes in one organized, portable case makes this a reliable kit for any metalworking project.

The metallic shimmer of the titanium nitride coating is the first thing you'll notice, signaling a tool built for serious heavy-duty work. I put this Neiko bit to the test, and the 135-degree split-point tip makes a massive difference by preventing that annoying bit-walking when you first touch the material. Because it uses #4241 high-speed alloy steel, it slices through hardened steel and thick wood with surprising ease. The 2-flute spiral design is a clever touch too, as it automatically deburrs the edges while you work, saving you the extra step of cleaning up the hole afterward. Whether you are enlarging an existing opening or drilling fresh ones, having nine different sizes from 1/4 inch to 3/4 inch in a single tool keeps your workflow incredibly fast.

The heavy, industrial weight of these bits in your hand immediately signals they aren't meant for light hobby work. This Hiltex 8-piece set is built for the serious user tackling steel, copper, or stainless steel. I was particularly impressed by the 135-degree split point geometry, which bites into the material instantly without that frustrating 'walking' effect on the surface. The tri-flat shanks are a massive win for stability, ensuring the bits stay locked tight in your chuck to prevent slippage during high-torque drilling. Since they are constructed from heat-treated carbon steel with a black enamel coating, they feel rugged enough to handle heavy-duty, repetitive cycles in a drill press. Everything arrives neatly organized in a portable case, making it easy to grab this specific range of large diameters whenever a big project calls.

Why should you settle for drill bits that wobble or snap the moment you apply real pressure? The amoolo 10-piece titanium HSS set solves the most frustrating part of DIY projects: instability. These bits feature an upgraded press-in pin connection that integrates the bit and hex shank, which drastically reduces the risk of the bit snapping off your driver. I was particularly impressed by the 135° split point design. It bites into metal and wood immediately without needing a pilot hole, while the factory-straightened bodies eliminate that annoying chatter during high-speed rotation. Whether you are working with soft metals or woodworking, the quick-change 1/4" hex shank makes switching between tools seamless. It is a rugged, reliable kit that actually stays centered when you need it most.

DrillForce delivers a heavy-duty solution for metalworkers and DIY enthusiasts who need reliable performance without breaking the bank. These 9/64 inch bits are built from M35 5% Cobalt High Speed Steel, meaning they can actually handle the toughness of stainless steel where standard bits often fail. I was particularly impressed by the HRC 65-66 hardness rating, which suggests they can withstand significant heat and friction during extended use. The 135-degree tip is a game changer because it self-centers immediately, preventing that annoying bit-walking that ruins precision work. While these are perfect for metal, wood, and plastics, just remember they aren't designed for masonry. For a ten-pack, the combination of titanium coating and efficient chip clearance makes this a standout addition to any workshop or service vehicle.

JEFE HEX has delivered a surprisingly robust set of general-purpose drill bits that punch well above their weight class for the price. These 7/64" HSS bits feature a specialized black and gold coating that significantly boosts lubricity and protects against corrosion during heavy use. What really impressed me during testing was the 135-degree split point. It bites into steel, copper, and wood almost instantly without the annoying 'walking' or wandering that usually plagues smaller bits. You can skip the center punch entirely because these stay planted. The parabolic flute design also does a fantastic job of clearing chips and managing heat, which keeps the tool from overheating. Whether you are a professional electrician or just tackling a weekend DIY project, this six-piece set offers dependable precision.

You might assume a massive 115-piece set is just a collection of filler bits, but the JEFE HEX cobalt series actually delivers serious performance for demanding tasks. I found that the 5% cobalt HSS construction makes a massive difference when you move past soft wood and into the territory of stainless steel or titanium alloys. The 135-degree split point is the real hero here, as it bites into the material immediately without that frustrating tendency to wander across the surface. Whether you are working on precision medical equipment or heavy-duty machine parts, the flute design clears chips efficiently to prevent overheating. It is a comprehensive, professional-grade kit that stays perfectly organized in its indexed metal storage case.

You might assume most step drills are just disposable bits that dull the moment they hit stainless steel, but this 1WANYUE set actually changes the math on tool longevity. The standout feature is the four-groove spiral flute design, which provides significantly more stability and cutting speed than the standard two-groove versions you usually find in a toolbox. Built from M35 cobalt high-speed steel and reinforced with a TiAlN coating, these bits handle heat and friction with impressive ease. I found that the 135-degree cutting angle makes a noticeable difference when biting into harder metals, though you definitely need to use cutting oil to keep the temperature down during heavy use. It is a professional-grade upgrade for anyone tired of bits flexing or snapping mid-cut.

The STROTON 6% Cobalt HSS Drill Bit Set delivers exceptional heat resistance that makes drilling through stainless steel feel surprisingly effortless. I was impressed by the triple-ground cutting edges, which actually slice through metal into long, clean iron chips instead of just grinding away at the surface like a dull bit. Because these are rated at 66-69 HRC, they can run two to three times faster than standard bits, which really changes your workflow efficiency. While the initial investment is higher than basic steel, the longevity of the material means you end up spending much less per hole over the long haul. Whether you are tackling iron plates, aluminum, or even PVC, these 135-degree jobber bits provide a level of professional durability that holds up under intense friction.

The golden shimmer of the titanium nitride coating isn't just for show. It actually makes a noticeable difference when you're powering through a project. I put these Drill Hulk bits to the test on a mix of soft metals and PVC, and the 135-degree split point really helps prevent that annoying walking effect when you first touch the material. Because they are crafted from M2 high-speed steel, they maintain a solid balance of toughness that holds up well during repetitive drilling tasks. The jobber length design provides a reliable 2-inch flute for efficient chip flow, which keeps the heat down and the hole quality high. Getting a twelve-pack in a dedicated case makes this a practical, ready-to-go solution for anyone who frequently drills through wood or medium-density materials.