Jet Broach Annular Hole Cutter Hole cutter Material: HSS High quality with reasonable DiameterItem NumberDiameterMMinchesmminches131/ ... provide clearly cutting, fast feed rate, less vibration, smooth hole surface and long tool life, the effective of drilling is ... alfra, bds, ruko, rotabroach; as well as radial drilling machine, boring machine, milling machine;6. Blade cutting resistance reduced by 50 ...