Product Details
Size 4MM - 12MM ( 2mm step ) 1/4" Shank. 5 Hole Sizes.
Step Drill Bits- Maximum Life in Tough Steel. The new IRWIN UNIBIT COBALT is the latest addition to the step drill bit category. Made of cobalt high speed steel, this step drill bit will last longer in the toughest of materials. From stainless steel to aluminum or PVC pipe,the UNIBIT Cobalt is the most versatile and longest lasting step drill bit in the market.
3-Flatted Shank- Won' t slip in chuck
- M35 grade Cobalt HSS
- Longest cutting edge life
- 6X longer life
Step Drill Bits- Maximum Life in Tough Steel. The new IRWIN UNIBIT COBALT is the latest addition to the step drill bit category. Made of cobalt high speed steel, this step drill bit will last longer in the toughest of materials. From stainless steel to aluminum or PVC pipe,the UNIBIT Cobalt is the most versatile and longest lasting step drill bit in the market.
3-Flatted Shank- Won' t slip in chuck
- M35 grade Cobalt HSS
- Longest cutting edge life
- 6X longer life
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