Description: Material: The chuck body and bearings are made of high quality, jaws are quenched and hardened, nickel plating is stainless and wear resistant ensuring long service life, high performance steel precisely machined to industry standards. HIGH PERFORMANCE JAWS: Multiple jaw sets provide great flexibility to the chuck. self centering jaws provide superior gripping force, allowing for turning workpieces in a variety of different shapes and sizes from the pens of 1/5” to bowls of 4”. PRECISION POLISHED COATING: Premium nickel plating and solid construction greatly reduce rust and maintenance, providing a smooth, accurate and beautiful addition to your lathe. WIDE APPLICATION: This chuck set has numerous applications for : General Lathe Use, Grinding, Milling, Drilling, Woodworking, and much more! Scroll chuck perfect for holding bowls, spindles, and other unwieldy wood lathe projects. Widely used for machine tools and accessories for general lathes and industrial machines. Specification: Material: High Carbon Steel  Size Chart: 10.1cmx7.2cm/3.98inchx2.83inch Package Includes: Optional Package: StyleA Included: 1 Chuck body with round jaw set and 1 Woodworm Screw and 1 T Handle hex key and 2 Fastening Rods StyleB Included: 1 Chuck Body with Round Jaw Set and 1 Woodworm Screw and 1 T Handle Hex Key and 2 Tightening Rod and 1x Step Claw StyleC Included: 1 Chuck Body with Round Claw Set and 1 Woodworm Screw and 2 Fastening Rod and 8 Inch Faceplate and 1x Step Claw