Quick and easy to install. Securely holds 3/16 - 1/2 inch square diameter tools. Precision ground and hardened. Completely sealed for maintenance-free operation. Maximum rigidity for chatter-free performance. Turning and facing tools can be locked. For use with tool post 250-100 or 250-. Suitable for a wide range of operations, from fine precise work to heavy duty cutting. Model: 250-101. Size: 7.6 x 3.3 cm. Material: High speed steel. Color: Black. Package Contents: 2 x Lathe Tool Holder. Only the above package content is included; other items are not included. Note: Lighting and different displays may cause the color of the item to vary slightly from the real thing. Measurement allowance is +/- 1-3 cm.