Product Name: Bt40 Tool Holder Bt Sdc Collet Chuck for Milling Machine Model NO.: BT-SDC Collet Chuck Certification: ISO 9001:2008 Material: metal Type: Bt-Sdc Collet Chuck Customized: Non-Customized Size: Bt-Sdc Collet Chuck Logo Printing: Without Logo Printing Trademark: N/A Transport Package: Carton Specification: BT-SDC Collet Chuck Origin: Shandong, China HS Code: 846610000 Product Description Features ofBT40 Tool Holder BT SDC Collet Chuck for Milling MachineMaterial: JIS - SCM420(After heat treatment, it has rigid hardness and toughness, better grinding quality, good flexibility and longer using life span)Hardness: HRC56-58Accuracy of deviation: below 5μ (4D length)Taper tolerance: Max run out: <0.005mmSurface roughness: Ra<0.005mmBalance: G6.3 or G2.5.The tool holder is through-hole, which is better for water to get through and anti-vibrant.The nut has preinstalled Dynamic balancing design, so it can be used for RPM10,000.Specification ofBT40 Tool Holder BT SDC Collet Chuck for Milling MachinePlease do not hesitate to contact us, if you have any requirements for drill chuck, collet chuck, CNC tool holder, collet, face mill cutter, or other machine tool accessories. We'd like to to offer you high precision tools at reasonable price.