Superior quality Lashercut hard high speed hacksaw blades are available in packs of 100, with 18 teeth per inch they are suitable for cutting most materials. Recommended for artisans, electricians, plumbers, repairmen and hobbyists. All blades are manufactured from a superior grade of steel giving the blade enduring performance and safety. The blade should be held firmly in a vice/frame for maximum performance. SABS approved which is the equivalent to British Standards.