Feature●Regarding DCMT21.51/DCMT070204 blade (55° diamond): CVD coated hard alloy for stainless steel and steel parts. The coating gives the blade strong impact resistance, good versatility, high precision, high smoothness and high wear resistance.●Regarding the rotary tool holder: 40Cr material, forged process, sturdy and durable, total length: 100mm-150mm, 95 degree rotary tool holder.●Advantages: wear-resistant and heat-resistant, not easy to stick or break on the tool handle or workpiece. Vacuum hardening, exquisite craftsmanship, easy to cut.●Features: Suitable for turning and finishing various materials. The material is sturdy steel and the holder has laser engraving. The bracket is coated with anti-rust oil to prevent oxidation. Plastic packaging for easier storage.●Package List:SDJCR01010H06+SDJCL1010H06+SDNCN1010H06+10pcs DCMT21.51 Hard Alloy Rotary Blades,with 3-T8 ScrewsDescription CVD coated hard alloy for stainless steel and steel parts. The coating gives the blade strong impact resistance, good versatility, high precision, high smoothness and high wear resistance.