Description
Irwin Unibit 10225 is a step drill bit set. Type Step Drill Set; applicable materials Stainless Steel, Copper, Brass, Aluminum, Plastic, Laminates; cutting edge material HSS. Irwin Unibit lists Rated for stainless steel, copper, brass, aluminum, plastic, and laminates; Three-flatted and hex shank options prevent slipping in the chuck; Four bits together cover a wide range of common hole sizes.
Irwin Unibit 10225 specifications
| Item | Irwin Unibit data |
|---|---|
| Part number | 10225 |
| Type | Step Drill Set |
| Applicable Materials | Stainless Steel; Copper; Brass; Aluminum; Plastic; Laminates |
| Includes | HSS #1 Bit 1/8 in to 1/2 in; HSS #2 Bit 3/16 in to 1/2 in; HSS #4 Bit 3/16 in to 7/8 in; HSS #21 Bit 13/16 in to 1-3/8 |
| Cutting Edge Material | HSS |
| Shank Diameter | 1/4 in; 3/8 in |
| Shank Type | 3-Flat |
| Length | 7.05 in |
| Width | 4.9 in |
| Height | 2.2 in |
| Weight | 1.0 lb |
Source: Irwin Unibit published product data.
This Irwin Unibit four-piece step drill set combines HSS #1, #2, #4, and #21 bits for enlarging holes in stainless steel, aluminum, and plastic.
- Rated for stainless steel, copper, brass, aluminum, plastic, and laminates
- Single-flute cutting edge gives greater control moving through each step
- Three-flatted and hex shank options prevent slipping in the chuck
- Self-starting tip eliminates the need for center-punching
- Four bits together cover a wide range of common hole sizes
A practical set for electricians and HVAC techs who need multiple hole sizes from one bit each rather than a full twist-drill index. Manufacturer item number: 10225. Sold as a complete set.
