Product Name: Cutter Certification: ISO9001:2008, ISO9001:2000, RoHS, CE Product Description 1.Description & featureHot tapping cutteris a special tool for pipe perforating machine, the center drill has the function of positioning and cutting down the saddle plate.Suitable for carbon steel, pipeline steel, stainless steel and other pipeline materials.The toughness and hardness of the main body are improved by using the whole heat treatment process.professional tool head Angle design, improve the opening efficiency more than 30%, reduce the damage rate of the tool teeth.ilot drilltype: U hook and fish scale hook.connection type of Pilot drill: screw thread type and flange type.diameter range of orifice cutter: dn20-dn2000.sealing knife diameter range: dn50-dn1800.All the design parameters have passed the finite element mechanical property test.