BT30 BT40 MTA1 BT40 MTA2 MTA3 MTA4 45L 90L 120L morse taper holder , MTA Morse Taper drill bit MTB Morse Taper milling cutter

High-concerned chemical : None Certification : NONE Origin : Mainland China Model Number : MTA/MTB Brand Name : KEENCUTEER Product hardness : > HRC56 Body accuracy : 0.005mm Product specification : BT30 BT40 Product material : High quality steel 20 CrMnTi Carburizing depth : > 0.8mm Surface roughness : > 0.8mm