PRO COBALT DRILL BIT SET HSSCO 19PCS

PRO SET OF HSSCO COBALT DRILLS 19PTSSpiral drill bit made of high quality alloy high speed steel according to DIN 338, cobalt content 5%.Right-handed spiral drill type N.Apex angle 135 degrees.Cross-ground according to DIN1412C.Diameter tolerance h 8.Solid rod ground spiral drill bit with excellent outer surface finish.Precision drill bits with high heat resistance and durability.For use on drill stands or column drills.Purpose:For alloy and carbon steel with tensile strength up to 1000 N/mm. V2A/V4A stainless steel, gray cast iron, iron sinters, acid and heat resistant steels.Cobalt drill bits: 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5.0, 5.5, 6.0, 6.5, 7.0, 7.5, 8.0, 8.5, 9.0, 9.5, 10.0 mm