Feature: 1. The structure is simple, large clamping force, and good airtightness, provide excellent performance. 2. The chuck is equipped with locking screws and wrenches, which can be installed and used immediately after purchase. 3. High repeated positioning accuracy, self‑centering chuck, durable, quality guaranteed. 4. Can be used in the field of woodworking, clamping, supporting and centering. 5. Made of high‑quality material, possess sturdy and durable quality, have a long service time. Specification: Item Type: Self‑Centering Lathe Chuck Set Model: KP96-E Accuracy: 0.03mm Outer Diameter of Chuck: Approx. 96mm / 3.8in Machine Tool Connection Thread: 1/8in thread Applicable Machine Tools: Woodworking machine tools Uses: For woodworking, clamping, supporting and centering. Package List: 1 x Self‑Centering Lathe Chuck Set1 x Screw1 x H8 Wrench1 x H3 Wrench1 x 2.5mm Hex Wrench1 x English User Manual