Product Description
Made with HSS6542/HSS M35/HSS4341
Shank Type:Triangle shank; Type:Spiral groove
Shank diameter: 10mm(0.39'') for 4-32; 8mm(0.31'') for 4-20; 6mm(1/4'') for 4-12
Hole Cutter step included: 4-12/20/32mm
Package Included: 1pcs HSS6542 Spiral groove STEP DRILL