1.CR-V steel shaft with heat treatment
2.Magnetic Tip holds screw securely ，PP+TPR handle all use new material
3.Slip-resistant grip increases user comfort
4.Hardness HRC≥59°
5.Torque value ＞20 N
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The rod material is 45°steel or carbon steel .the surface of the cutter is not smooth.(the reson is density is not high .hardness lower .surface couldn’t smooth) the handle is used in the first class return handle ,easy borken
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