Check the listing for details. NEW BT50 x 45 Degree Pull Stud Retention Knob CNC Milling Tool Holder. Condition: New. Listed at 7.36 USD. Specification: Brand newMachine Taper: BT50 Thread: M24Head Diameter: 23 mm Neck Diameter: 17 mm Full Length: 85 mm Angle Degree: 45 degrees Color: Black and silver Weight: 285g Package include:1pcs BT50 45 We are sales agent for brand KORLOY, mitsubishi,walter, iscar, kyocera, sumitomo, Toshiba, CK, CBN, PCD. We have the entity factory specializing in the production of customized insert,machine tool,the calibration, high middle low-end products with shorter delivery time and higher quality. We also have ER collet, tap, die, HOLDER, milling cutter, drill, etc for sales. All kinds of machine tools. If goods sold have any quality problem, we promise to return unconditionally. There is a discount on purchase multiple products, please don't hesitate to contact us for batch purchase at the lowest price.