Twist Drill Bit Reduced Shank 1/2'' Nitride Coated Hole Drilling Cutter HSS Black Reduced Shank Twist Drill Bits for Metal Wood

High-concerned chemical：None Origin：Mainland China isCustomized：Yes Certification：NONE Model Number：12mm-40mm DIY Supplies：Metalworking Material：High Speed Steel Type：Gun Drill Bit Use：Metal Drilling

High-concerned chemical: None Origin: Mainland China isCustomized: Yes Certification: NONE Model Number: 12mm-40mm DIY Supplies: Metalworking Material: High Speed Steel Type: Gun Drill Bit Use: Metal Drilling