BOSCH METAL DRILL HSS – CO (COBALT) 338 5.50mm

Drill made to DIN 338, type N (helix angle) with 135 degree tip and h8 diameter tolerance.Cobalt HSS twist drill provides long-lasting performance when drilling in stainless steel.Cobalt alloy and fully ground HSS give heat protection and water resistance.The two cutters and twists remove the sawdust easily and increase the life of the drills.