Irwin® Unibit® 15104 Self-Starting Hss Step Drill, 3/16 in Dia Min Hole, 7/8 in Dia Max Hole, 12 Steps, 12 Hole Sizes, 3/8 in Shank
PET4T
MFG #: 15104
$74.99
/ EACH
- Color: Natural White
- Cutting Edge Material: HSS
- Drill Diameter Measurement System: Imperial
- Finish: TiN Coated
- Hole Sizes Cut: 12
- Letter/Wire Size: #4T
- Material: HSS
- Maximum Hole Diameter: 7/8 in
- Minimum Hole Diameter: 3/16 in
- Number of Flutes: 1
- Number of Hole Sizes: 12
- Number of Steps: 12
- Overall Length: 3-1/4 in
- Point Type: Self-Starting SpeedPoint®
- Shank Size: 3/8 in
- Shank Type: 3-Flat
- Step Depth: 1/16 in
- Type: Self-Starting
Irwin® Unibit®, 15104, Hss Step Drill, Self-Starting, Imperial, #4T Letter/Wire, 3/16 in Diameter Minimum Hole, 7/8 in Diameter Maximum Hole, 3-1/4 in Overall Length, 12 Steps, 1/16 in Step Depth, 12 Hole, 1 Flutes, 12, 3/8 in Shank, 3-Flat Shank, Self-Starting SpeedPoint®, HSS Cutting Edge, TiN Coated, Natural White, 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
- 3 flatted shank prevents slipping in drill chuck
- New speed point tip penetrates faster than previous Unibit® and prevents walking
- Titanium nitride coating resists heat and friction, extending the cutting edge life up to six times longer than other high speed steel step drill bits
- 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
- SpeedPoint® tip for fast starts
- Hex shaped shank secures easily in drill
- #1, #2, #10 and #12 sizes have a quick change shank