DORMER E524 HAND TAP HSS GT 7/8 INCH NO 6

HSS Machine thread-cutters for UNF thread uncoated ISO 529 form C straight grooves 1.5xD blind and continual holes for general use in steel <1200 N/mm². Cast iron. Copper and brass. Aluminium alloys. Duraplastics and fibre-reinforced plastics. • Machining steel soft steel (<120 HB <400 N/mm²) • Construction steel carburised steel (<200 HB <700 N/mm²) • Carbon steel (<250 HB <850 N/mm²) • Alloyed steel (<250 HB <850 N/mm²) • Alloy steel hardened and tempered steel (>250<350 HB >850<1200 N/mm²) • Cast Iron lamellar (<150 HB >500 N/mm ²) • Cast iron lamellar (>150<300 HB >500<1000 N/mm²) • Ductile cast iron/malleable cast iron (<200 HB <700 N/mm²) • Ductile cast iron/malleable cast iron (>200<300 HB >700<1000 N/mm²) • Copper (<100 HB <350 N/mm²) • Béta-Brass Bronze (<200 HB <700 N/mm²) • Alfa-Brass (<200 HB <700 N/mm²) • Extra-strong bronze (<470 HB <1500 N/mm²) • Aluminium alloyed Silicon 0.5% (<150 HB <500 N/mm²) • Aluminium alloyed Silicon > 0.5% <10% (<120 HB <400 N/mm²) • Aluminium alloyed Silicon >10% whisker reinforced Aluminium-alloys Magnesium-alloys (<120 HB <400 N/mm²) • Duraplastics • Reinforced plastic materials