Description
The Irwin Unibit Step Drill Bits, Titanium Fractional Self-Starting is a step drill bit. Type Step Drill Bit; finish TiN; cutting diameter (max) 1/2 in, 7/8 in. Irwin lists 3 flatted shank prevents slipping in drill chuck. Available in 2 versions.
Specifications
| Item | Irwin data |
|---|---|
| Type | Step Drill Bit |
| Finish | TiN |
| Cutting Diameter (max) | 1/2 in; 7/8 in |
| Cutting Diameter (min) | 1/8 in; 3/16 in |
| Cutting Edge Material | HSS |
| Material Thickness (max) | 1/8 in; 3/8 in |
| Measurement Type | Fractional |
| No. of Steps | 13; 12 |
| Shank Diameter | 1/4 in; 3/8 in |
| Tool Shape | Tree - Step Drill |
| Width | 3.05 in; 1 in |
| Height | .8 in; 3.2 in |
Source: Irwin published product data.
Irwin Unibit titanium step drill bits have a single-flute cutting edge and TiN finish for drilling thin stainless steel, aluminum and plastic, offered in 12 and 13-step models covering 1/8 to 7/8 inch.
- Ideal for drilling holes into thin materials such as stainless steel, copper, brass, aluminum, plastic and laminates
- Single-flute cutting edge for greater control through steps
- 3 flatted shank prevents slipping in drill chuck
- New SpeedPoint tip penetrates faster than previous Unibits and prevents walking
Available in 2 versions. Choose one from the list to see the exact item number and price.
Item Numbers
Variant item numbers:
15101ZR – 1/8 in to 1/2 in · 13 Steps
15104 – 3/16 in to 7/8 in · 12 Steps
