US PRO INDUSTRIAL 19pc HSS Cobalt Metric Drill Bit Set 1 - 10mm 2643 Extendable Ratchet Four chrome molybdenum steel made

Four chrome molybdenum steel made collets

1 x 1" x 2" (25 x 100mm) Extension Rod

Total Holder Width 30cm (300mm)

Air inlet: 1/4'' BSPT

US PRO INDUSTRIAL 19pc HSS Cobalt Metric Drill Bit Set 1 - 10mm 2643 Extendable Ratchet Four chrome molybdenum steel madeCobalt provides extended drilling life in very hard, abrasive and difficult to machine materials. Corrosion and wear resistant, these drills last much longer than your typical steel drill. Split point makes centre punching unnecessary and avoids skidding. HSS precision ground from High Speed Steel with 5% cobalt. Intended to be used on alloys, hardened steels, cast irons, titanium & many other really hard to drill materials such as stainless steel.