AIH Rewards: We're excited to announce our new AIH Rewards program. 
Irwin® Unibit® 10233 Self-Starting Step Drill Bit, 1/4 in Dia Min Hole, 3/4 in Dia Max Hole, 9 Steps, 9 Hole Sizes, 3/8 in Shank
PET3
MFG #: 10233
$39.99
/ EACH
- Cutting Edge Material: HSS
- Drill Diameter Measurement System: Imperial
- Finish: Bright
- Letter/Wire Size: #3
- Material: HSS
- Maximum Hole Diameter: 3/4 in
- Minimum Hole Diameter: 1/4 in
- Number of Flutes: 1
- Number of Hole Sizes: 9
- Number of Steps: 9
- Point Type: Self-Starting SpeedPoint®
- Shank Size: 3/8 in
- Shank Type: Hex
- Step Depth: 1/16 in
- Type: Self-Starting
Irwin® Unibit®, 10233, Step Drill Bit, Self-Starting, Imperial, #3 Letter/Wire, 1/4 in Diameter Minimum Hole, 3/4 in Diameter Maximum Hole, 9 Steps, 1/16 in Step Depth, 9 Hole, 1 Flutes, 3/8 in Shank, Hex Shank, Self-Starting SpeedPoint®, HSS Cutting Edge, Bright, Applicable Materials: Aluminum, Brass, Copper, Laminates, Plastic and Stainless Steel
- Application
- Item Features
For drilling holes into thin materials
- Single flute cutting edge for greater control through steps
- Hex shank prevents slipping in drill chuck
- Also available with (TiN) coating for longer life
- New speed point tip penetrates faster than previous Unibit® and prevents walking
- Geometry of single flute cutting edge drills true, round holes and provides maximum step control
- Laser etched sizes inside flute for easy and permanent hole size identification
- Ideal for drilling holes into thin materials such as stainless steel, copper, brass, aluminum, plastic and laminates