... .8-3.2mm Hole dimater: 20, 20/25.4/30mm Teeth number: 20,30,40,60,80,100,120 20" TCT ... , 30T, 40T, 60T, 80T, 100T, 120T Outer DiameterBody ThicknesskerfHole Diameter Teeth NumberINCHMetric(mm)(mm) 20T 30T 40T4"1101.2 1.820 ... SAW BLADEALLOY nonferrous metals ALLOY NICKING SAW BLADE 8" tungsten carbide saw blade for cutting paper