Best Spiral Reduced Shank Drill Bits in 2026

HSS Titanium Coating - Classic HSS construction with titanium coating for capability and durability. The cutting edge is hardened and honed for sharpness, chatter-free design with staggered cutting teeth ensure the precise countersinking and hole smooth clean.

Flutes Form - 2 flutes form helps clear chips and debris away from the bit, decreasing friction and heat for a faster, cooler drilling process.

Quick Change - 1/4 inch hex shank fits into all power tools more easily and securely, specially for locking into quick change chuck. We also offer a quick-change adapter to better quick change.

Ideal for drilling in tough metal, including heavy-duty abrasive alloy metal drilling on hardened steel

Made from industrial grade High-Speed Steel for increased durability. 8% Cobalt alloy steel is heat and abrasion-resistant

135-degree split-point tip starts drilling immediately with less force and eliminates "walking" across the work surface

11/16IN S&D DRILL BIT

11/16IN S&D DRILL BIT

11/16IN S&D DRILL BIT

Drills flat-bottomed and pocket holes in significantly less time than traditional Forstner bits

Features optimized ultra-sharp cutting teeth specifically engineered to cut through hard and soft woods smoothly and efficiently

Easily drills high-quality flat-bottomed and pocket holes with a fine, smooth finish

Speed helix design for three times faster drilling than standard bits

Last 50 percent longer than high-speed steel

Easier drilling, reduced heat and extended drill bit life

Speed helix design for three times faster drilling than standard bits

Last 50 percent longer than high-speed steel

Easier drilling, reduced heat and extended drill bit life

Saves time: The HSS Twist Drill Bit PointTeQ with reduced shank enables you to drill through metal quickly thanks to the special design of the drill bit tip

High durability: The increased speed of the drill bit means less heat is built up, reducing wear

Precision work: The self-centering PointTeq tip design prevents slipping and allows an easy and efficient start

①Specifications: 16 PCS includes 1/4" (6.3mm), 3/8" (9.5mm), 1/2" (12.7mm), 5/8" (15.8mm), 3/4" (19.0mm), 7/8" (22.2mm), 1" (25.4mm), 1-1/8" (28.5mm), 1-1/4" (31.7mm), 1-3/8" (34.9mm) ，1-1/2（38.1mm), 1-5/8(41.28mm), 1-3/4(44.45mm), 1-7/8(47.63mm), 2(50.8mm) and 2-1/8(53.98mm) forstner bits

②Features: Hex Shank is easy to install and tighten ,prevent the bit from slipping. Extra sharp cutting spurs is especially designed for cutting through hard and soft wood or other materials smoothly and efficiently.

③Great Performance: Easily make flat-bottomed and pocket holes with no chipping on any wood or wood products, plastic, polywood and other materials during processing or installation.

High-speed steel tools are good for most general purpose applications, offering a combination of hardness and toughness for wear resistance

Gold and black surface treated for use in stainless steel and other hard metal drilling

Round shanks allow use with a wide variety of toolholding systems

Speed helix design for three times faster drilling than standard bits

Last 50 percent longer than high-speed steel

Easier drilling, reduced heat and extended drill bit life

The item is Bosch Daredevil DSBE1012 12-inch drill bit extension

Used for power tool accessories, drill bits & accessories

The product is manufactured in China

Round shank designed for rotary and percussion hammer drilling through block, brick, stone, concrete and marble, Swift Cut (Registered Trademark)

Tungsten Carbide reinforced head - precision ground

Induction-hardened body ensures straightness and strength, sandblasted finish

DRILLING AIN’T EASY: Drilling quickly and accurately into different materials requires choosing the appropriate drill bit type. Get it done right with The Hi-Spec Multi Metric Drill Bit Set. The perfect complement for those everyday drilling jobs in wood, plastics, metal, drywall, masonry, concrete and brick

78 HSS BITS: High-Speed Steel (HSS4241) round-shank twist drill bits, stronger than normal high-carbon steel, for most metals, wood, drywall and plastics. Titanium coated for wear resistance and reduced friction. Sizes 1/16, 5/64, 1/8, 5/32, 3/16, 1/4, 5/16, 3/8”

26 BRAD POINT WOOD BITS: Their sharpened edges easily cut and churn out wood, drywall and plastics. Also known as spur point bits, piercing tips allows for non-slipping and accurate starts. Sizes 5/32, 3/16, 15/64, 5/16, 3/8"

WIDE APPLICATIONS - compatible with power screwdrivers, impact drivers, and other tools that accept 1/4" hex shanks, allowing for quick changing between multiple drill bits and screwdriver bits with just one power tool. suitable for soft metal, woodworking, home improvement, DIY lovers etc;

UPGRADED STRUCTURE - press in pin connection makes the bit and hex shank an integrated structure to prevent break off during drilling, greatly reduced the risk of drill bit snapped off from the hex drive;

ELIMINATES WOBBLING & CHATTER - the final straighten process is added before shipping from the factory. which keep the bit in a straight line during rotation and reduce chatter;

HIGH SPEED STEEL: These metal drill bits for steel are made of high speed stainless steel and is designed to ensure sharp and fast execution in any material leaving clean results. This 8-piece drill-bit set is capable of drilling through plastic, copper, stainless steel, and other surfaces.

LARGE DRILL BIT SET: Heat treated carbon steel with a black enamel coating is durable and can withstand heavy duty operation for a long tool life.

PRECISION DRILLING SET: Bit is precision ground with geometry of 135-degree split point for quick self-centering penetration and an accurate start that prevents walking and clears chips and particles faster.

Patent-Pending Design - ①Optimized largest area groove for efficient and smooth chip removal, faster than standard spade bits. ②The cutting edge with unique double-side cutting spurs for grabbing wood and carving it away, creating beautiful holes with reduced breakout

High Quality - Constructed from carbon steel with fully heat-treated and black oxide coating for durability and hardness above HRC48, the head with the polished surface is made to ensure longevity and high wear resistance

Quick-Change Hex Shank - 1/4" hex shank with groove helps reduce slipping and prevent falling off as well as safety, universal for the most drill driver tool of brands in the markets

Durable Construction - HSS material with black and gold coating increases lubricity, provides corrosion protection, and increases durability. Ensures longer tool life in multiple working conditions. Tapered web provides strength, durability and reduces breakage.

No Center Punch is Needed - 135° split point design for fast penetration with less pressure. Twist drill bit kit will not "Walk" or "Wander".

Parabolic Flute - Parabolic flute for better chip removal and reduced heat build-up.

Accuracy & Longevity - 135 degree split point starts drilling immediately requires less force and eliminates “walking” across the working surface. Tapered web provides strength, durability, and reduces breakage.

Three-Flat Design - Three flats on shank eliminate bit spinning in chuck. Our proprietary parabolic flute design brings optimal chip removal which reduces heat build-up.

Wide Range of Uses - Drill bits are built for general purpose applications, such as steel/copper/aluminum/zinc alloy/wood/plastics. Also, it's ideal for DIY projects and home maintenance. Durable and reliable quality.

[Four groove step drill] - The ordinary step drill is easy to flex during the cutting process, but the four groove step drill is more stable in the cutting. The service life is twice that of ordinary ladder drills, the drilling accuracy is significantly improved, the cutting speed is faster when drilling, and it has a unique effect on stainless steel drilling.

[M35 Cobalt High Speed Steel] - M35 cobalt high speed steel can be obtained by proper heat treatment with high hardness , high red hardness and high wear resistance. Its toughness and bending strength are higher than that of ordinary high-speed steel, which is better for hard materials.

[TiAlN] -TiAlN coating is a new coating material in recent two years. It has high hardness, high oxidation temperature, good thermal hardness, strong adhesion, low friction coefficient and low thermal conductivity coefficient.

Premium cobalt high speed steel construction for proven capability and durability to drill holes in wood, plastic, aluminum, copper, stainless, sheet metals and many other types of materials

Superior gold titanium and black nitride dual coating finish holds up lubricant better for smoother drilling, and is 80% more durable and corrosion resistant than regular black enamel finish

135° Split point design at tip increases cutting speed with self-centering feature and prevents drill walking or wobbling

[Specifications and packaging]: 7pcs 12" long point wood drill bits set.Include size:1/8",5/32",3/16",1/4", 5/16", 3/8",1/2".

[Fitment]: Brad point drill bits suitable for bench drill, hand drill and conventional electric drill. Perfect for hardwood, fiberboard, particleboard, plywood, plastic, PVC, rubber etc.

[Material]: Long drill bits are made of classic carbon steel material for fast cutting against tough wood material. High hardness, offer superior cutting power and durable.

Features: Cutting Edge Diameter : 12.5mm / 0.49"; Shank Diameter : 12.5mm / 0.49"; Cutting Edge Length: 102mm / 4.02"; Total Length : 150mm / 5.91"; Cutting Direction: Right Hand

High Speed Steel Tool: High-speed steel straight shank tool is good for most general purpose applications, offering a combination of hardness and toughness for wear resistance

Sharp Spiral Flutes: Provide neat and smooth cuts. High cutting edge strength, fast cutting speed. Spiral groove facilitates the export of metal chip, saving time and effort in operation.

High Quality Material - High Speed Steel M2 Black and Gold, resists corrosion, ensures outstanding durability, sharpness and capability, reduces the friction and runs cooler.

Black and Gold Oxide Finish - Premium gold titanium and black nitride dual coating can apply lubricant better for smoother drilling and is more durable and corrosion resistant than the regular black surface.

135-degree & Split Point - Increases cutting speed with self-centering and prevents walking, clears chips and particles faster. The split point tip can increase the wear resistance. 135-degree penetrates hard material without a pilot hole and produces small chips to reduce clogging.

Total Size: 155 x 17mm/6.1 x 0.67 inch (L*Max.D)

Shank Diameter: 1/2 inch; Material: High Speed Steel

Milled & polished flutes ensure chips move smoothly.

EXTRA LONG LENGTH & 2 TYPE SHANK: Extra long 300mm body provides better stability and balance during quick operation to ensure position is intact. Flute length is 180mm with ROUND shank and REDUCED shank.

HIGH QUALITY MATERIAL: Classic Carbon Steel Material for fast cutting against tough wood material. High hardness, offer superior cutting power and durable.

FULL SET OF STANDARD SIZE: With the drill bits we offered, you can process 7 different diameter holes, ( Round shank| 1/8'', 3/16'', 1/4'', 5/16'', 3/8'' Reduced Shank| 7/16'', 1/2'' ), which meet your different needs perfectly.

DRILL-BIT SET: Our Silver and Deming Drill-Bit Set is professionally built for personal or industrial use. This 8-piece drill-bit set is capable of drilling through plastic, copper, stainless steel, and other surfaces.

HEAVY-DUTY DRILL BITS: With a premium high-speed steel construction, these drill bits for metal, plastic, and wood have a unique black-and-gold dual finish to hold lubricant for smoother drilling while providing maximum corrosion resistance.

PRECISION DRILLING SET: Each drill bit has a 135-degree split-point design that increases cutting speed and makes any drill fast and efficient. The self-centering feature helps prevent walking or wobbling on the bit while in use.

High Speed Steel tool - 26mm cutting diameter. Good for most general purpose applications, featuring a combination of hardness and toughness for wear resistance

Reduced Shank - Expanding the size range capacity of a portable drill chuck. Common flute and overall length for minimal adjustment during tool changes

Black Oxide Finish - Black oxide treatment adds lubricity. Small pockets on the surface of the tool that act to hold coolant near the cutting edge

High Speed Steel tool - 32mm cutting diameter. Good for most general purpose applications, featuring a combination of hardness and toughness for wear resistance

Reduced Shank - Expanding the size range capacity of a portable drill chuck. Common flute and overall length for minimal adjustment during tool changes

Black Oxide Finish - Black oxide treatment adds lubricity. Small pockets on the surface of the tool that act to hold coolant near the cutting edge

SPEED-TIP self-feed design effortlessly pulls the bit with minimal effort and faster holes

Optimized curved paddle design quickly removes chip build-up for more holes per charge

Impact Strong increases shank stability and durability

Set of 8 pieces; 1/2" shank; Made of M35 - high-speed steel + 5% cobalt

Silver and Deming drill sets in a fitted plastic box

Sizes include 9/16", 5/8", 11/16", 3/4", 13/16", 7/8", 15/16" and 1"