Top 10 7/8 Step Drill Bit – Step Drill Bits

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1. Saiper


Saiper Titanium Step Drill Bit 3/16" to 7/8" 12 Step Sizes HSS 4241 Triangle Handle Step Drill Bits Drill Holes for Plastic, PV Plate, Aluminum

Saiper #ad - Longer strength & durability: perfect for drill holes in steel, copper, aluminum, plastic, and other thin materials Thickness is below 5 mm. Tri-flatted shank: tri-flatted side cutouts fits into power tools chuck securely to eliminate slippage and provide stronger grip for standard drill chuck.

Smoother cutting: two-flute Design for smoother cutting and faster removal of chips, making the debris easy to fall off. No need to replace other step drills and save time! Industrial grade materials: Manufactured with heat treated High-Speed-Steel HSS bits with Titanium Coated. 3/16" to 7/8" step drill bit: includes 12 step sizes with 3/16", 5/8", 5/16", 3/4", 1/2", 1/4", 9/16", 13/16", 3/8", 7/16", 11/16", 7/8".
BrandSaiper #ad
ManufacturerSaiper #ad
Height0.7 Inches
Length4.33 Inches
Weight2.36 ounces
Width2.95 Inches

2. Dewalt


DEWALT Step Drill Bit, Impact Ready, 3/16-Inch-7/8-Inch DWA1786IR

Dewalt #ad - Split point tip increases speed. Laser engraved numbers increases step visibility. Optimized for impact driver usage. Titanium two flute spiral design provides longer life and better chip removal.
BrandDewalt #ad
ManufacturerDewalt #ad
Height0.88 Inches
Length6 Inches
Width2.88 Inches
Part NumberDWA1786IR

3. Jerax tools


Unibit with highlighted steps and size marks, Aluminum, Jerax tools 3/16 to 7/8 Inch Step Drill Bit Straight Grooved Double Fluted , M2 High speed steel drill bits for hole drilling in Stainless steel, Plastic, Copper, Wood

Jerax tools #ad - Highlighted steps and size marks◾ Both marks let you see while drilling so you can easily stop on any hole size. Up to 12ga /2. 7mm thickness for the stainless steel, plastic, Copper, Wood, Galvanized steel, Aluminum, Mild steel, or 1/8inch /3mm thickess for other materials.

M2 hss◾ compared to other commonly used lower grade hss, m2 has 50% more Tungsten and 150% more Molybdenum, both of which are key elements in improving the durability. The additional vacuum heat treatment and Nitride surface hardening treatment make the performance even better. Wide application◾ designed for drilling small and large-diameter holes in stainless steel, or anything that has similar or lower hardness as these materials.

Self-starting tip & Double flutes◾ Requires no pilot hole and penetrates faster. 3/8" tri-flatted shank fits into power tools chuck securely and eliminates slip. One bit for all◾ comes with 12 sizes so you can drill up to 12 holes with different diameters, saving you time and efforts to change bits.
BrandJerax tools #ad
ManufacturerJerax tools #ad
Height3.55 Inches
Length0.98 Inches
Width0.98 Inches
Part NumberSTG7/8

4. Klein Tools


3/16 to 7/8-Inch, Klein Tools KTSB14 Step Drill Bit #14 Double-Fluted

Klein Tools #ad - Fast-starting, non-walking drill tip. Thick 3/8" hex shank provides a firm, positive grip and won't spin out in the drill. High-visibility silver step targets for primary hole sizes. Two flutes cut faster and keep bit cooler.
BrandKlein Tools #ad
ManufacturerNorth Coast Electric #ad
Height0.3 Inches
Length5.2 Inches
Weight0.15 Pounds
Width3.4 Inches
Part NumberKTSB14



1/4 Inch 6.4 mm Hex Shank, 12 Size From 3/16 Inch 4.8 mm To 7/8 Inch 22.2 mm, TEMO M35 Cobalt Spiral Flute Step Drill

TEMO #ad - M35 cobalt hss to cut stainless steel. The step drill bit is made with m35 cobalt. The size marks are stamped next to each step to ease the use. It is widely used in metal manufacturing because of its ability to resist wear over conventional high speed steels, allowing for shorter cycle times in production environments due to higher cutting speeds or from the increase in time between tool changes.

Double spiral flutes for more efficient swarf clearance; 1/4 Inch hex Shank with quick release slot to eliminate slipping; Self-starting for clean holes in thin materials;.

The addition of cobalt increases heat resistance. M35 is similar to m2, plastic, but with 5% cobalt added. M35 hssco is a high speed steel alloy made up of 5% cobalt. M35 cobalt step drill 1/4" 6. 35mm hex shank 12 hole 3/16" 4. 76mm to 7/8" 22. 22mm. It is ideal for variety of materials from stainless steel, metal, fiberglass to wood. 12 hole sizes: 3/16" 4. 76mm, 5/8" 15.
BrandTEMO #ad
ManufacturerGolden Coulee #ad
Height1 Inches
Length3 Inches
Weight4 ounces
Width1 Inches
Part Number3051

6. Irwin Tools


IRWIN Step Drill Bit, 3/8-Inch Shank 10234, 3/16-Inch to 7/8-Inch

Irwin Tools #ad - Speedpoint tip penetrates faster and prevents walking. Backed by a full lifetime warranty. Non-skid tip, no need for center punches. Ideal for drilling holes into thin materials such as stainless steel, brass, aluminum, copper, plastic and laminates.

Each drill acts as a pilot for the next size. This product is easy to use. 3-faltted hex shank prevents drill chuck slipping. Save time because you don't need to change drills for different-sized round holes in thin materials. This product is highly durable. Made from industrial-grade high-speed molybdenum steel heat treated for maximum durability. This product is manufactured in United States. Drill diameters etched in flute for easy identification.
BrandIrwin Tools #ad
ManufacturerIRWIN #ad
Height6 Inches
Length0.1 Inches
Weight0.19 Pounds
Width3 Inches
Part Number10234



3/16" to 7/8", Milwaukee Electric Tool GIDDS2-2475506 Step Drill Bit

MILWAUKEE'S #ad - Delivers high performance in heavy-duty applications. Soft grip handle design offers increased gripping surface and comfort. All-metal ratcheting keyless chuck for greater bit retention.
Height1.9 Inches
Length6.9 Inches
Weight0.2 Pounds
Width5.9 Inches
Part Number48-89-9204

8. Neiko


3/16", 7/8" in 1/16" Increments, Neiko 10185A Titanium Step Drill Bit

Neiko #ad - Material: hss high speed steel and 4241# Titanium Nitride Coated. Coating: titanium nitride coating allows to easily cut through aluminum and iron sheets, copper, plastic and wood boards and other types of sheet metal. Shank: 3 flatted 3/8" Shank. Quality: made from high Speed Steel, this step drill bit is manufactured for fast hole drilling capabilities. Ten sizes witincludes: ten sizes: 3/16" to 7/8" in 1/16" increments just one bit.
BrandNeiko #ad
ManufacturerRidgerock Tools Inc. #ad
Height0.98 Inches
Length2.36 Inches
Width5.71 Inches
Part Number10185A

9. Irwin Tools


12-Steps Cobalt Step Drill Bit 1/16- Inch Steps, Irwin Industrial Tools 10234CB #4 Unibit 3/16- Inch – 7/8-Inch

Irwin Tools #ad - Single-flute cutting edge drills true round holes with smooth, clean finish. Drills 12 different hole sizes, from 3/16" to 7/8" by 16ths. Speedpoint tip prevents "walking, " gets fast starts, and eliminates the need for pilot/starting hole. Cobalt high speed steel for extended cutting edge life makes it ideal for drilling stainless steel.
BrandIrwin Tools #ad
ManufacturerIRWIN #ad
Height0.98 Inches
Length7.13 Inches
Weight0 Pounds
Width3.13 Inches
Part Number10234cb



ACTOOL Industrial HSS Step Drill Bit 3/16 inch to 7/8 inch with 3/8 inch shank, Double Spiral Flute with 12 Step Size

ACTOOL #ad - Two flute spiral design provides longer life and better chip removal, 3 flatted shank prevents slipping in drill chuck. Ideal for drilling holes into thin materials such as stainless steel, brass, aluminum, copper, plastic and laminates. Drills 12 hole sizes from 3/16 inch to 7/8 inch in 1/16 inch increments. Made of industrial-grade M2 high speed steel, heat treated for maximum durability. Cnc fully grinding for longer tool life to save drilling cost.
BrandACTOOL #ad
ManufacturerACTOOL #ad
Height0.88 Inches
Length3.11 Inches
Width0.88 Inches
Part NumberACH002