Thes Makita Performance Ground Point HSS 19PC Bit Set have a 118º ground point for fast and accurate drilling. They are milled from a solid steel form which means a higher level of strength and precision. Ideal for use on steel, cast iron, aluminium, malleable cast iron, brass and copper aided with a helicoidal flute to improve swarf discharge. Conform to DIN338 standard. Features and Benefits • Application: Steel, Cast iron, aluminium, brass, copper, non-ferrous, wood, engineering, automotive as well as mild steel and wood • Contains: 19 - HSS Groundpoint Bits, Sizes: 1,1.5,2,2.5,3,3.5,4,4.5,5,5.5,6,6.5,7,7.5,8,8.5,9,9.5mm • They are milled from a solid steel form which means a higher level of strength and preciseness • Helicoidal Flute to improve swarf discharge