Irwin Speedbor Drill Bit Set, Tri-Flute, Specifications: 4 in Flute, 1/4 in Shank, Hex Shank, HSS, Titanium, Number of Pieces: 6, Suitable for: 1/4 in Quick-Change Chucks, Includes: 1/2 in, 5/8 in, 3/4 in, 7/8 in, 1 in and 1-1/4 in Drill Bits
| Type | : | Tri-Flute |
| Specifications | : | 4 in Flute, 1/4 in Shank, Hex Shank |
| Material | : | HSS |
| Finish | : | Titanium |
| Number of Pieces | : | 6 |
| Suitable for | : | 1/4 in Quick-Change Chucks |
| Includes | : | 1/2 in, 5/8 in, 3/4 in, 7/8 in, 1 in and 1-1/4 in Drill Bits |