Turning and facing tools can be locked together (saving time and labor during replacement operations) Made of steel, not aluminum. Precision grinding and hardening.Maximum rigidity without vibration performance.With a variety of sizes of drill bits, turning and facing tools can be locked together. Quick and easy to install on an engine, table or turret lathe for a wide range of operations from precision machining to heavy duty cutting. Suitable for lathe swing 3/16in- 1/2in, efficient "V" groove design for securely fixing round shank tool.Firmly secure the 3/16in-1/2in square diameter tool. Can be used forAXA tool post 250-111.Can be interchanged with Dorian, Aloris and Phase IIAXA series tool holders., Weight: 0.9259415004 pounds, Manufacturer: Garosa