Overview Reviews Product Description This Irwin Unibit® #1 cobalt step drill bit is engineered with m-35-grade cobalt steel for maximum life when drilling in tough steel.Laser-marked sizes enable easy reading.The radial concave flute design helps ensure an effective use of drilling power. Irwin Tools Catalog Product Videos Custom Field Manufacturing country US Product Reviews Write a Review Write a Review × Irwin UNIBIT® 1/8 - 1/2" #1 Cobalt Alloy Steel Step Drill Bit 10231CB Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Review Subject * Comments *
Irwin | sku: IRW 10220CB UNIBIT® 9/16 - 1" #20 Cobalt Alloy Steel Step Drill Bit 10220CB MSRP: Now: $108.73 Add to Cart Irwin | sku: IRW 11103 UNIBIT® 3 - 6mm Cobalt Alloy Steel Step Drill Bit 11103 MSRP: Now: $75.08 Add to Cart Irwin | sku: IRW 10231 UNIBIT® 1/8 - 1/2" #1 High Speed Steel Step Drill Bit 10231 MSRP: Now: $41.65 Add to Cart Irwin | sku: IRW 10234CB UNIBIT® 3/16 - 7/8" #4 Cobalt Alloy Steel Step Drill Bit 10234CB MSRP: Now: $112.64 Add to Cart
Irwin | sku: IRW 11103 UNIBIT® 3 - 6mm Cobalt Alloy Steel Step Drill Bit 11103 MSRP: Now: $75.08 Add to Cart Irwin | sku: IRW 10231 UNIBIT® 1/8 - 1/2" #1 High Speed Steel Step Drill Bit 10231 MSRP: Now: $41.65 Add to Cart Irwin | sku: IRW 10234CB UNIBIT® 3/16 - 7/8" #4 Cobalt Alloy Steel Step Drill Bit 10234CB MSRP: Now: $112.64 Add to Cart
Irwin | sku: IRW 10231 UNIBIT® 1/8 - 1/2" #1 High Speed Steel Step Drill Bit 10231 MSRP: Now: $41.65 Add to Cart Irwin | sku: IRW 10234CB UNIBIT® 3/16 - 7/8" #4 Cobalt Alloy Steel Step Drill Bit 10234CB MSRP: Now: $112.64 Add to Cart
Irwin | sku: IRW 10234CB UNIBIT® 3/16 - 7/8" #4 Cobalt Alloy Steel Step Drill Bit 10234CB MSRP: Now: $112.64 Add to Cart