Best Neiko Step Drill Bits in 2026

PREMIUM STEP BIT: Each unibit is constructed of industrial high-speed steel with a titanium nitride coating for durability and strength to punch and drill clean holes in materials like plastic, aluminum, wood, copper, stainless steel, and other types of sheet metal.

STEP DRILL BIT FOR METAL: With a split point tip that accelerates cutting speed while preventing angled walking away from center line of bore, drilling holes in metal is fast, efficient, and clean.

SPIRAL DESIGN: The two-flute spiral grooved design deburrs chip, dust and debris for clearance and smooth cutting. With 50 step sizes combined, each hole made with these step bits will be precise.

Titanium Nitride Coated two flute spiral design provides longer life and better chip removal for the DEWALT drill bit set

Split point tip of the drill bit increases speed

Laser engraved numbers increases step visiblity

Product 1: CONVENIENCE: Change Bits Without Re-Chucking

Product 1: USE WITH: Made to Fit 1/4 In. Drills

Product 1: PRECISION: Bit Design Features a Self Centering Function for Perfect Hole Drilling

Two flutes on this Step Drill Bit cut faster and keep bit cooler

Fast-starting, non-walking drill tip

High-visibility silver targets for primary hole sizes

In one step, you can drill, countersink and counter bore the perfect sized hole for #4, #6, #8, #10, or #12 screws.

Snappy Tools Countersinks will drill the pilot hole and countersink or counter-bore for screws in one step. Countersink to drive the head of the screw flush with or slightly below the surface

Ideal for plugs or dowel buttons. The 1/4" hex shank can be used with power drills and quick-change chucks.

Single-flute cutting edge for greater control

Hex shank helps prevent slipping in the drill chuck

IRWIN Unibit step drill bits are ideal for drilling holes into thin materials, such as stainless-steel, copper, brass, aluminum, plastic and laminates

VERSATILITY: Bosch hex shank countersink bits feature adjustable depths and provide precise, clean pilot holes in wood, plastic and composite materials

3 in 1: Drill, Countersink and Counterbore in one step

UNIVERSAL FIT: The Bosch SP515 countersink set fits all Bosch and competitive brands drill/drivers

Countersink drill bit set for wood with tapered drill bit , 4 Flute countersink cutter #45 Carbon Steel, tapered countersink set features 3 Piece drill set All Same Size drill bits with countersink #4 (7/64") Adjustable wood countersink, 1 Hex Wrench (1/8" Allen Key). Counter-bore, and wood plugs size 3/8 inch. Hex shank compatible with 1/4" standard Quick Change chuck including impact drills. FTG 2326 drill bit set hex shank

Wood drill bit set with counter bore chamfer angle 82 degree, smooth countersinking in hard and soft wood, tapered holes for screws. Adjustable countersink drill bit with quality built depth adjustable counter bore attaches to flat on shank with 2 hex screws for controlled pilot hole depth. Best adjustable wood countersink drill bits set ideal for woodworking. Countersink tool set made with countersink bits for wood

Tapered drill bits pointed tip and wide flute for drilling fast, clean pilot hole, ensures tight fit for screws. Countersink hex drill bit set with tapered drill bit can be replaced with FTG replacement taper drill bits countersink for extended wood bit. Countersink drill bits for wood made to drill, countersink, and counter-bore in 1 step sink counter set. Counter sink bits designed as to work as wood drill bits

Material: Titanium Combination Drill taps are made of HSS 4341, High hardness, rustproof, solid and durable; Each tap drill is engraved with a size making, which is convenient for you to choose the size that suits you.

Easy Use: Fast replacement composite cone, uses drill edged principle. Drilling and tapping in one, one-step processing, greatly save processing steps and time costs, improve working efficiency.

Metric: M3x0.5, M4x0.7, M5x0.8, M6x1, M8x1.25, M10x1.5.Shank:1/4 inch (6.35mm) hex quick-change shank, fit Electric hand drill, impact drill, bench drill, electric screwdriver and other tap machines.

M35 Cobalt HSS Step Drill: The M35 cobalt HSS step drill is an ideal choice for drilling through a variety of materials such as stainless steel, metal sheet, wood, plastic, aluminum sheet, copper, and other metal sheets.

Spiral Flute Design: The spiral-flute design prevents metal filings from flying around and clears chips faster, allowing for smoother drilling without overheating. The split point tip is at 118 degrees to increase wear resistance.

Widely Applicable: Our step drill bit can process different diameter holes, making it easy to drill through plastic, wood, plank, and soft rubber with low hardness countersunk. Suitable for home DIY and general building/engineering use.

1) 3 standard SAE step drill bits can drill 28 different size of holes on different thickness of materials. One 3/16-inch to 1/2-inch six-step bit, 1/4-inch to 3/4-inch nine-step bit, and 1/8-inch to 1/2-inch 13-step bit(detailed hole size and drill depth of each drill bit please check in Product description below)

2) Made of high quality high speed steel that is hard and sharp enough to drill through wood, plastic, steel and sheet metal

3) Titanium coated surface can reduce friction and overheat when drilling through material for longer life time

STEP DRILL #1 1/8-1/2" 13 SZ

STEP DRILL #1 1/8-1/2" 13 SZ

STEP DRILL #1 1/8-1/2" 13 SZ

[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.

[What You Will Have] Set of 6 metric tap drill bit set M3x0.5 M4x0.7 M5x0.8 M6x1 M8x1.25 M10x1.5 Short size is not easy to shake and can drill accurately

[Easy Use]Fast replacement composite cone uses drill edged principle Drilling and tapping in one, one-step processing, which can drill, tap, deburr and counter holes on wood, copper, brass, aluminum, sheet metal and plastic greatly save processing steps and time costs, improve working efficiency

[Material] HSS4341 (high-speed steel) + titanium coating. Each tap drill is engraved with a size making, which is convenient for you to choose the size that suits you

Countersink drill bit set for wood with tapered drill bit 3rd Party Tested HSS M2, 4 Flute countersink cutter #45 Carbon Steel tapered countersink set 4 sizes drill bits with countersink #6 (9/64"), #8 (11/64"), #10 (3/16"), #12 (7/32") 2 plug cutters for wood making wood plugs or wood dowels sizes 3/8" and 1/2" Adjustable wood countersink, 1 Hex Wrench (1/8" Allen Key) counter sinker drill bit for wood. 1/4" Hex shank compatible with standard Quick Change chuck including impact drills

Wood drill bit set with counter bore chamfer angle 82 degree, smooth countersinking in hard and soft wood, tapered holes for screws. Adjustable countersink drill bit with quality built depth adjustable counter bore attaches to flat on shank with 2 hex screws for controlled pilot hole depth. Best adjustable wood countersink drill bits set ideal for woodworking. Countersink tool set made with countersink bits for wood, FTG 6TO12P tapered countersink drill bits

Tapered drill bits pointed tip and wide flute for drilling fast, clean pilot hole, ensures tight fit for screws. Countersink hex drill bit set with tapered drill bit can be replaced with FTG replacement taper drill bits countersink for extended wood bit. Countersink drill bits for wood made to drill, countersink, and counter-bore in 1 step sink counter set. Counter sink bits designed as to work as wood drill bits

Package Includes 4pcs bits:2 x Pocket Hole Jig System drill and come with Free 2 Pack x 6-Inch #2 Square Driver Bit for Pocket Hole Systems

Made specifically for Pocket-Screw Joinery.Drilling Jigs Accessory has made your projects that require joinery much simpler.drill guide for pocket holes.work well with the Manual Pocket Hole Jig Master System, or alone

Small tip includes clearance hole for screw shank

WIDELY APPLICATION: Drilling, tapping and deburring/ countersinking in one bit, one-step processing, greatly save processing steps and time costs, improve working efficiency. 6 imperial sizes of thread tap drill bit(1/8”, 5/32”, 3/16”, 1/4”, 5/16”, 3/8”) included in the set to meet your diversified requirements

TOP GRADE QUALITY & CORROSION RESISTANCE: Bonderizing Surface protects the metal from corrosion. Improve the finish adhesion and corrosion resistance. High quality, long lasting and durable.

HIGH QUALITY MATERIAL: HSS 4241 for fast cutting against tough wood material. High hardness, offer superior cutting power and durable.

🔨The bit comes with 19 sizes so you can drill up to 19 holes with different diameters, save the time and energy of replacing the drill bit and improve your drilling efficiency; 19 sizes (3/16", 9/32", 3/8", 7/16", 17/32", 5/8", 11/16", 25/32", 7/8", 29/32". 31/32", 1", 1-1/16", 1-1/8", 1-5/32", 1-7/32", 1-9/32", 1-5/16", 1-3/8")

🔨Solid M2 high speed steel construction for extra durability, the 3/8 inch thick hex shank prevents slip in drill chuck and reduces shocks.

🔨Double-Fluted design keeps the step drill stable and provides faster cutting and drilling, while minimizing the scattering of steel chips and prolonging the service life.

【Step Drills and Cone Drill】3 piece 5/9/14 step drills (4-12/20/32mm) and 1 piece cone drill (8-20mm). Laser marking of step size provide convenient and accurate drilling

【Countersink Drill Bits】6 piece countersink drill bits: 6.3, 8.3, 10.4, 12.4, 16.5, 20.5mm - 90° point, three cutting edges, ideal for deep countersinking

【High Quality】All drills are HSS Titanium coated, come with 1/4" (6.35mm) hex shank, and are precision ground, heat treatment, and hardened for consistently accurate drilling or enlarging holes into sheet & non-ferrous metals, wood and plastics

🔧【Material】 HSS 4241 & classic high speed steel with titanium coating for strength and longevity.

😀【Package】 3-Piece HSS Groove Step Drill Bit (4-12/ 4-20/ 4-32mm ) + 1 Automatic Center Punch.

🔧【Easy Drilling】 Two-fluted design provides faster, smoother cutting, provided with small pressure and the sets. Stepped grooves prevent slippage in the chuck.

1) ONE BIT FOR ALL: High-visibility silver targets for primary 19 hole sizes; come with 19 sizes (3/16", 9/32", 3/8", 7/16", 17/32", 5/8", 11/16", 25/32", 7/8", 29/32". 31/32", 1", 1-1/16", 1-1/8", 1-5/32", 1-7/32", 1-9/32", 1-5/16", 1-3/8") so you can drill up holes with different diameters, saving your time and efforts to change bits.

2) DURABLE & STURDY: Solid M2 high speed steel construction for extra durability, the unique thick 3/8 inch hex shank prevents slip in drill chuck and reduces shocks, for a more positive grip.

3) HIGH PERFORMANCE: Double-Fluted Step Drill Bits provide faster cutting and drilling than single flute bits, it is optimized for cordless drills in high speed provides greater speed and control.

Package:Come with wrench and limit ring.Rustproof, durable

Type:1/4" Hex-Shank drill bit.Works with standard chucks of 9.5mm(3/8")dia

Small tip includes clearance hole for screw shank.Large diameter creates flat-bottomed hole

High speed steel along with titanium coating ensures outstanding durability and sharpness for plastic, aluminum, copper, stainless steel hole drilling

Two-flute design provides faster, smoother, accurate cutting and prevents metal scurf from flying around for improved safety

Quick change 1/4" hex shank (6.35mm)can be easily fit into power driver, drill and press drill

[Easy Use]Fast replacement composite cone uses drill edged principle Drilling and tapping in one, one-step processing, which can drill, tap, deburr and counter holes on wood, copper, brass, aluminum, sheet metal and plastic greatly save processing steps and time costs, improve working efficiency

[Material] HSS4341 (high-speed steel) + titanium coating. High speed steel is designed to ensure sharp, fast execution and withholds strength and efficiency. Each tap drill is engraved with a size making, which is convenient for you to choose the size that suits you

[Quick Change] 1/4 inch Hex Shank fits into all power tools more easily and securely, especially for locking into quick change chuck. Convenient ¼” hex shank features a tapered end to prevent over-tapping and includes a quick-change adapter for easy size change

[M2 HSS]: Cuts A LOT MORE CLEAN holes and much EASIER than average step bits. In general, M2 has 50% more Tungsten and 150% more Molybdenum, both of which are key elements in improving the durability. Our additional Vacuum heat treatment and Nitride surface hardening treatment make the performance even better.

[Non-stop]: Our Polished Steps and Size Highlights make it possible for you to see target hole size during drilling. No need to stop in the middle of the drilling to check. Save you time and hassle.

[Easy & Fast]: With our high-accuracy CNC processing and several optimized design details over the years, our design cuts EASY, FAST and CLEAN, outperforming the average ones on the market. Comes with Quick change 1/4 inch hex shank for quick bit switches and compatible with impact ready power tools.

【Widely Used】Perfect Step Drill Bits suitable for drill holes in various material： within 3mm/0.12 inch (Iron Plate, Copper Plate, Aluminum Plate); within 5mm/0.2 inch (Wood, PVC sheet, Insulation Boards). Not suitable for hard and brittle materials such as stainless steel, glass, tile floors, walls etc.

【Material】HSS combined with a titanium coating. More capable and durable.

【Hexagonal Design 】: Hex Shank fits into all power tools more easily and securely, especially for locking into quick change chuck. It is better clamped on the pistol drill to prevent slippage and shedding during the rotation.

Shape: 7pcs 1/4 inch Shank Titanium Combination Drill and Tap Set, Metric M3*0.5mm (2pcs), M4*0.7mm, M5*0.8mm, M6*1.0mm, M8*1.25mm, M10*1.5mm, It is not easy to shake and can drill accurately.

Multi-purpose: These drill tap bits are must have if you fabricate a lot; you can use the in aluminum, wood, plastic, iron, and so on, They’re sharp, and easy to use. Fit Electric hand drill, impact drill, bench drill and tap machines.

Easy to Use: Each tap drill is engraved with its size convenient for you to choose the suitable size with a glance. A tapered end on hex shank can prevent excessive knocks; Back taper exceeds the tap to prevent over-drilling and damage to the thread.

32 Pack Woodworking Chamfer Drilling Tool Set – Nice set of specialized bits useful in creating a nice finished effect for woodworking. Ideal for wood, particle board, fiberboard, logs, plastic boards, PVC pipes used on hand drill, bench drill and electric drill.

7Pcs Countersink Bit for Wood – Made of high carbon steel with high hardness & abrasive resistance, large chip flute and five edge chamfers can drain saw dust faster and easier(Size - 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 10mm). With 1pc hex L-wrench, you could easily remove and adjust counter sleeve depth and drill depth.

8Pcs 3/8" Shank Wood Plug Cutter Drill Bit Set – Made of durable carbon steel, it is used for tapered 1/4", 3/8", 1/2", 5/8" corks to cover recessed screw holes or hide imperfection. Can cut the plug 22mm/23mm/25mm/26mm in depth as well.

【Countersink Bits for Wood】EZARC 7pc wood countersink drill bit set features a comprehensive range of sizes for woodworking projects: #4 (7/64"), #6 (9/64"), #8 (11/64"), #10 (3/16"), along with 1pc wood plug cutters 3/8", a Allen Key, and 1pc depth stop collars 3/8".

【Industrial-Grade Material】Constructed from industrial-grade high-speed steel with a nitrided surface, our woodworking countersink drill bits offer enhanced toughness and wear resistance. The Cr-V alloy steel chamfering edges boast 2x longer life than common carbon steel edges on the market.

【Adjustable Depth Control】This counter sinker drill bit set features adjustable depth stop collars, enabling precise control over pilot hole depth, ensuring consistent and precise countersinking for a professional finish.

【Widely Used】Perfect Step Drill Bits suitable for drill holes in various material： within 3mm/0.12 inch (Iron Plate, Copper Plate, Aluminum Plate); within 5mm/0.2 inch (Wood, PVC sheet, Insulation Boards). Not suitable for hard and brittle materials such as stainless steel, glass, tile floors, walls etc.

【Material】HSS combined with a titanium coating. More capable and durable.

【Easy Drilling】Two-Flute Design for smoother cutting. High Step design let you feel the stop and never drill bigger in mistake