• Material : Hardened Steel (turning holder) + Carbide (turning insert)
  • Package :1PC S12M-SDUCR07 + 1PC SDNCN1212H07 + 1PC SDJCR1212H07 + 1PC SDJCL1212H07 + 4PC DCMT21.51 Inserts + 4PC T8 Wrench
  • Black oxided smooth finish on each turning tool holder style and shank size.
  • Each tool holder comes with a carbide insert with positive rake cutting angle and built-in chip breaker great for general purpose cutting action.
  • Blades exquisite workmanship, high strength, high toughness, stable and durable. If you need more dcmt21.51 insert ,you can search for Asin: B07GSW3VSG

arrived in good condition. Use them on steel. Works great

Quality product at a good price. Much more expensive in stores.

These work great. I’m using them on a Chinese 7x mini lathe with a quick change tool post.

They seem well built and finished, and EACH comes with a torx driver to change the insert.

Combined with an AXA QC tool post, this set has been a godsend. It's a significant improvement over 1/4" HSS bits held in a lantern-style tool post. The inserts should be snugged up before use, but the inserts themselves are good to go. The boring bar has flats for use in a typical holder, so a holder specific to boring bars isn't needed.

Works well for hobby use. Milled harden shaft an tips held up