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Step Drill Bits

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Brand

Greenlee® Kwik Stepper® (5)

Ideal® (2)

Irwin® Unibit® (6)

Klein® Unibit® (1)

Lenox® Vari-Bit® (3)

Type

Fractional (2)

Fractional, Hole Enlarging (2)

Fractional, Self-Starting (9)

Metric (1)

Multi-Hole (1)

Overall Length

3 in (1)

3-7/8 in (1)

5 in (1)

7-1/8 in (2)

Minimum Diameter

1/8 in (1)

Size

1/2 to 1-1/8" (2)

1/2" (1)

1/4 to 1-3/8" (1)

1/4 to 3/4" (1)

1/8 to 1/2" (1)

1/8 to 1/2" Bit dia. (35-511), 1/4 to 1-3/8" Bit dia. (35-517), 1/4 to 7/8" Bit dia. (35-513), 1/4 to 1-1/8" Bit dia. (35-515) (1)

1/8 to 1/2" Bit dia. (35-521), 1/4 to 7/8" Bit dia. (35-522), 1/4 to 1-1/8" Bit dia. (35-523) (1)

13/16 to 1-3/8" (1)

3/16 to 1/2" (1)

3/16 to 7/8" (3)

7/8 to 1-1/8" (1)

7/8 to 1-3/8" (2)

7/8 to 1-7/32" (1)

Item

#1 Step Drill Bit (1)

#11 Step Drill Bit (1)

#2 Step Drill Bit (1)

Electrician's Step Bit Kit (1)

Multi Hole Step Drill Bit (2)

Quick Change Step Drill Bit (1)

Quick Step Drill Bit (1)

Single Hole Step Drill Bit (1)

Step Drill Bit (5)

Step Drill Bit Set (1)

Variable Step Drill Bit (2)

Size Range

1/8 to 1/2 in By 1/32 in (1)

Warranty

Limited (1)

Shank Size

1/2" (1)

1/4 in (6)

1/4" (2)

1/4" X 3/8" dia. (1)

1/4" dia. (1)

3/8 in (8)

3/8" (9)

7/16 in (6)

7/16" (2)

Finish/Coating

Black Oxide (4)

Bright (10)

Steam Oxide (4)

TiN Coated (2)

Increment

1/32 in (1)

Number of Pieces

3 (2)

4 (1)

Shank Type

3 Flat (1)

3-Flat, Reduced (3)

Hex (11)

Round With 3 Flat (2)

Round with Flats (3)

Finish

Black Oxide (1)

Oxide (3)

Steam Oxide (2)

TiN (6)

Uncoated (2)

Number of Flutes

1 (15)

2 (8)

Cutting Direction

Right Hand (2)

Flute Type

Radial Concave (2)

Tree (1)

Bit Length

1-7/8" (1)

2-1/4" (1)

2-7/8" (1)

3" (1)

3-1/8" (1)

3-1/8, 3-5/16 and 2-1/4" (1)

3-9/16" (1)

Cutting Depth

1/8 in (1)

Point Angle

135 deg (2)

Number of Steps

1 (1)

10 (3)

12 (4)

13 (4)

2 (1)

6 (2)

8 (1)

9 (2)

Specifications

3-Flat, Round Shank, 1/32 in Step Increment, 2 Flutes (1)

Material

HSS (11)

High Speed Tool Steel (1)

M35 Cobalt HSS (10)

Applicable Materials

Ferrous, Non-Ferrous Materials, Stainless Steel, Copper, Brass, Aluminum, Plastic and Wood (1)

Metal and Plastic (3)

Metals (2)

Mild Steel, Copper, Brass, Aluminum, Wood, Plastic and Laminates (1)

Most Metals and Stainless Steel (2)

Stainless Steel, Copper, Brass, Aluminum, Plastic and Laminates (11)

Cutting Edge Material

HSS (10)

M35 HS-Co (10)

Includes

48-89-9201 NO 1 1/8 - 1/2 in by 1/32 in, 48-89-9202 NO 2 3/16 - 1/2 in by 1/16 in and 48-89-9204 NO 4 3/16 - 7/8 in by 1/16 in Step Drill Bits (1)

Step Thickness

1/8" (35-511), 1/16" (35-513), 1/16" (35-515), 1/16 to 1/4" (35-517) (1)

1/8" (35-521), 1/16" (35-522), 1/16" (35-523) (1)

Number of Hole Sizes

1 (2)

10 (3)

12 (4)

13 (4)

13, 11, 16 (1)

13, 11, 16, 10 (1)

2 (1)

6 (2)

8 (1)

9 (2)

Point Type

SpeedPoint (13)

SpeedPoint® (1)

Split (3)

Step Depth

1/16 in (6)

1/32 in (2)

1/8 in (6)

2 - 3 mm (1)

Letter/Wire Size

NO 1 (2)

NO 10 (1)

NO 14 (1)

NO 2 (1)

NO 20 (1)

NO 21 (1)

NO 3 (1)

NO 4 (2)

NO 4T (1)

NO 5 (1)

NO 5MT (1)

NO 9 (1)

Minimum Hole Diameter

1-7/32 in (1)

1/2 in (2)

1/4 in (3)

1/8 in (4)

13/16 in (1)

3/16 in (6)

5 mm (1)

7/8 in (1)

9/16 in (1)

Maximum Hole Diameter

1 in (2)

1-1/8 in (1)

1-3/8 in (3)

1-7/32 in (1)

1/2 in (7)

3/4 in (1)

35 mm (1)

7/8 in (4)

BC376637

Irwin® Unibit® 10234 Fractional Self-Starting Step Drill, NO 4, 3/16 in, 7/8 in, 12 Steps, 12 Hole, M35 Cobalt HSS

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BC376639

Irwin® Unibit® 10231 Fractional Self-Starting Step Drill, NO 1, 1/8 in, 1/2 in, 13 Steps, 13 Hole, M35 Cobalt HSS

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BC439421

Lenox® Vari-Bit® 30912-VB12 Step Drill Bit, 7/8 - 1-3/8", 5 Hole, 1/4" Step, High Speed Steel

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BC195406

Greenlee® Kwik Stepper® 36414 Quick Step Drill Bit, 7/8 - 1-3/8", 6 Hole, 1/8" Step, Oxide, High Speed Steel

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BC202263

Irwin® Unibit® 10235 Fractional Self-Starting Step Drill, NO 5, 1/4 in, 1-3/8 in, 10 Steps, 10 Hole, M35 Cobalt HSS

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BC871064

Milwaukee® 48-89-9204 Step Drill Bit, 3/16 in, 7/8 in, 12 Steps, 12 Hole, HSS

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BC878814

Milwaukee® 48-89-9205 Step Drill Bit, 1/4 in, 1-3/8 in, 10 Steps, 10 Hole, HSS

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BC014578

Klein® Unibit® 53511 #11 Step Drill Bit, 7/8 - 1-1/8", 2 Hole, Uncoated, High Speed Steel

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BC445200

Irwin® Unibit® 10234CB Fractional Step Drill, NO 4, 3/16 in, 7/8 in, 12 Steps, 12 Hole, M35 Cobalt HSS

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BC447437

Lenox® Vari-Bit® 30881 Step Drill Bit, 1/8 in, 1/2 in, 13 Steps, 13 Hole, HSS

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BC447438

Lenox® Vari-Bit® 30882 Step Drill Bit, 1/2 in, 1 in, 9 Steps, 9 Hole, HSS

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BC447440

Lenox® Vari-Bit® 30909-VB9 Variable Step Drill Bit, 7/8 - 1-7/32", 3 Hole, Steam Oxide, High Speed Steel

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BC830923

Irwin® Unibit® 16105 Metric Step Drill Bit, NO 5MT, 5 mm, 35 mm, 13 Steps, HSS

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BC899506

Milwaukee® 48-89-9221 Step Drill Set, 3 Pieces, 3-Flat, Round Shank, 1/32 in Step Increment, 2 Flutes, HSS, Black Oxide

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BC902718

Milwaukee® 48-89-9202 Step Drill Bit, 3/16 in, 1/2 in, 6 Steps, 6 Hole, HSS

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BC887909

Irwin® Unibit® 10231CB Fractional Step Drill, NO 1, 1/8 in, 1/2 in, 13 Steps, 13 Hole, M35 Cobalt HSS

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BC851161

Ideal® 35-524 3PC Quick Change Step Drill Bit, 1/4" Shank, High Speed Tool Steel

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BC851160

Ideal® 35-520 4PC Electrician's Step Bit Kit, 1/4" x 3/8" Shank

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BC795965

Irwin® Unibit® 10239 Fractional Self-Starting Step Drill, NO 9, 7/8 in, 1-1/8 in, 2 Steps, 2 Hole, M35 Cobalt HSS

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BC378500

Irwin® Unibit® 10314 Fractional Self-Starting Step Drill, NO 14, 1-7/32 in, 1-7/32 in, 1 Hole, M35 Cobalt HSS

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BC098234

Greenlee® Kwik Stepper® 34410 Single Hole Step Drill Bit, 1/2"

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BC109163

Greenlee® Kwik Stepper® 35884 3 Piece Step Drill Bit Set, 1/2 - 1-1/8", 1/8" x 3/8" Step, 13/12/3 Holes, Oxide, High Speed Steel

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BC014531

Klein 59001 #1 Step Drill, 1/8 to 1/2 in By 1/32 in

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BC011659

Irwin® Unibit® 10221 Fractional Hole Enlarging Step Drill, NO 21, 13/16 in, 1-3/8 in, 10 Steps, 10 Hole, HSS

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BC011654

Irwin® Unibit® 10220 Fractional Hole Enlarging Step Drill, NO 20, 9/16 in, 1 in, 8 Steps, 8 Hole, HSS

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BC166432

Greenlee® Kwik Stepper® 34401 Multi-Hole Step Drill Bit, 1/8 in, 1/2 in, 13 Hole, HSS

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BC166433

Greenlee® Kwik Stepper® 34403 Multi Hole Step Drill Bit, 3/16 - 7/8", 12 Hole, 1/8" Step, Oxide, High Speed Steel

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BC011605

Irwin® Unibit® 10233 Fractional Self-Starting Step Drill, NO 3, 1/4 in, 3/4 in, 9 Steps, 9 Hole, M35 Cobalt HSS

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BC388660

Greenlee® Kwik Stepper® 30008 Multi Hole Step Drill Bit, 1/2 - 1-1/8", 3 Hole, 3/8" Step, Uncoated, High Speed Steel

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BC345738

Irwin® Unibit® 10310 Fractional Self-Starting Step Drill, NO 10, 1/2 in, 1/2 in, 1 Steps, 1 Hole, M35 Cobalt HSS

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BC253821

Irwin® Unibit® 15104 Fractional Self-Starting Step Drill, NO 4T, 3/16 in, 7/8 in, 12 Steps, 12 Hole, HSS

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BC171874

Irwin® Unibit® 10232 Fractional Self-Starting Step Drill, NO 2, 3/16 in, 1/2 in, 6 Steps, 6 Hole, M35 Cobalt HSS

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BC437639

Lenox® Vari-Bit® 30908-VB8 Variable Step Drill Bit, 3/16 - 7/8", 12 Hole, 3/16, Steam Oxide, High Speed Steel

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Step Drill Bits

Step Drill Bits

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