Retention Knobs Being one of the leading manufacturers of Tool Holding products, Lexis Tooling Systems Pvt Ltd started its manufacturing facility in India over a wide range of Tool holding product range including Collets, Tool Holders, Ball Bearing Nut & Retention Knobs. We are counted among the well-known companies that manufacture, supply and export an extensive range of various models of Retention Knobs includes BT30 Retention Knobs, BT40 Retention Knobs, BT50 Retention Knobs as per DIN 69872 standard guidelines. All our Retention Knobs are designed for meeting the international standards for maximum safety and long life. We are offering these products at reasonable prices. Retention Knobs also identified as Pullstuds. While placing order ensure to order the correct model / size of Retention Knobs, because incorrect Retention Knobs may cause damage to your machine spindle, the tool holder and it may create safety threat in the working place. Retention Knobs types BT30 Retention Knobs BT40 Retention Knobs BT50 Retention Knobs BT30 Pull Stud BT40 Pull Stud BT50 Pull Stud DIN 69872 Standard Retention Knobs MAS Standard Retention Knobs CAT ANSI Type Retention Knobs JIS B 6339 Retention Knobs