Weighs approximately 600 grams. Made of aluminum alloy Designed for finishing and polishing wooden cart bowls and dish bottoms. The jaws with insurance should be installed on the 4-inch C-type chuck to that they not fall off the chuck. The appearance is beautiful and , with long-term stable performance. Speed: 800 RPM. A large diameter workpiece range from 2-1/2inch to 8-1/4inch can meet your different finishing and polishing job needs. The 8inch jaw set consists of 4 flat jaws, each with 7 fixed positions. The distance between the holes is . 1 cm. Colour:silver+black Material:aluminum alloy Package Contents: 1 x Lathe Chuck Jaw Set Kit 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.