Product Description: 6pcs Combination 1/4" Hex Twist Tap Drill HSS M3-M10 Bit Set Description: 1. Material:HSS 4241,4341,6542,M35 2. Hardness:HRC 60-68 3. Process:Fully Ground 4. Point:118/135 degree split point 5. ...learn more
Contact Supplier
Submit Requirement