Sherwood Jobber drills are general purpose drills for steels, cast steel, grey cast iron, malleable cast iron, nickel brass, aluminium alloy and graphite. Industrial quality construction with ground flutes, blue finish. Supplied in indexing metal cases.
Features and Benefits • High-speed steel with industrial quality construction for added toughness • Ground flutes for greater cutting precision • Supplied in indexing metal cases for quick and easy tool selection and portability
Insert Grade QX5030 (ISO P20-P40 M20-M30) CVD Coated. - Medium / rough turning and intermediate cutting of steel / stainless steel. Combination of toughest substrate and alumina coating (MT-TiCN + TiC + AL2O3 + TiN) having superior chipping resistance provide wide coverage.
A chatter-free cutter giving an excellent burr-free finish. Capable of deburring and countersinking in one stroke with no ‘back-off’ of tool. Also free countersinking of aluminium with no secondary bulge. For special applications and exotic materials, a choice of hard coatings is available.