Specification: 1 / 4-1 / 2 external knife holder Suitable for: CCMT milling inserts Type: Cylindrical tool post size:49*49*20mm Material:metal colour:black Package Contents: 6 * Mini Lathe 1/4 inch -1/2 inch Turning Tool Post Holder Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.