Quick and easy to install. Securely holds 3/16 - 1/2 inch square diameter tool bits. Precision ground and hardened. Completely sealed for maintenance-free operation. Maximum rigidity for chatter-free performance. Turning and facing tools can be locked together. For use with AXA tool post 250-100 or 250-111. Suitable for a wide range of operations, from fine precise work to heavy-duty cutting. Model: 250-101 Lathe swing: Up to 12 inch Tool bit capacity: 3/16 - 1/2 inch Color: Black Material: Metal Size: 7.6 x 3.3 cm Package Contents: 1 x Holder Quick Change Tool Note: Only suitable for piston type Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture to be slightly different from the real thing. The measurement allowed error is +/- 1-3 cm.