Series J100 - Inch General purpose drills for steels, cast steel, grey cast iron, malleable cast iron, nickel brass, aluminium alloy and graphite. Point angle: 118°, helix angle: normal, web thickness: standard, relief angle: 10°-20°, tolerance of diameter: h8, tolerance of shank: f11. Manufactured to BS 328/DIN338RN.
Bright Finish Drills with a bright finish are supplied in the as-ground condition and such tools are used generally in the machining of non-ferrous materials.
Features and Benefits • Hard tungsten carbide tips for clean and accurate holes • Universal compatibility - fits most tools • Shank type: Straight • Flute construction: Roll forged
Typical Applications • A general purpose mortar and masonry drill bit suitable for workshop and maintenance
The HSS-Co 5% Countersink 6 Piece Set features high performance, multi flute countersinks in various sizes.
Features and Benefits • Manufactured from high speed steel and cobalt for improved strength • Straight shank design with bright finish for improved performance on ductile metals • Supplied in a robust carry case for easy and secure portability • straight shank design • 90° ground flute angle provides optimal cutting performance with an inclusive angle of 90°
Conical Shape. All sizes are nominal with a 6mm shank unless other wise stated.
Cut Numbers:
Cut 6 - Double Cut. Crosscut and double cut to improve control and chipbreaks. Manufactured from high grade tungsten carbide for general-purpose use.
Cut 9 - Chipbreaker Chipbreaker fast stock removal for improved control and reduced chips for use on hard materials, i.e. steel alloy 50RC, 60RC, carbon and cast iron.
Suitable for deburring and polishing of cast iron, cast steel, carbon steel, alloy steel and stainless steel etc. up to HRC65 hardness.
Please note: • Work piece and tools should always be steady and well supported. • Carbide burrs are not suitable for 'milling' large amounts of material, they are for light stock removal and high revolutions 'LOW FEED - HIGH SPEED'. • Always ensure that at least 70% of the shank length is clamped by the collet or chuck of the tool being used. • Always ensure that the tool is rated to the recommended operating speed of the burr.