CNC Tool Holders for HSD ISO30 ATC Spindle with Covernut and Pull Stud CNC Router Tool Holders Description: This is a balanced ISO 30 tool holder (cone) that is used for ISO 30 taper systems. It is woodworking tool holders for wood working auto tool changer CNC routers. All HSD ISO 30 ATC spindles use this cone. The HSD Auto Tool Changer clamping system uses the pull stud at the end to pull the cone precisely into the spindle's taper. ISO30 ER32 Toolholder, A=50mm. Commonly known as ISO30 for many HSD and Biesse equipped CNC routers. Balanced to 24,000 rpm <=G2.5, ISO30 toolholder includes HSD pull stud and ER32 collet nut. ISO30 CNC Tool holders Features: Collet Chuck accepts all ER32 collets Works on all machines that take ISO30 tooling All critical surfaces precision ground Tool cones come with predrilled balancing holes Made from alloy steel hardened to 54 - 56rc Balanced to 24,000 rpm Concentricity is less than 0.0001 at collet face Rear thread for pull stud for HSD ATC spindle Gage length is 42mm Tool holder fork model: ISO 30 Tool holder model: ISO30ER32-42 Application: ATC cnc center /cnc router/cnc woodworking engraving machine HSD ATC ISO30 ER32 Collet Chuk Holders with Retention Knobs and covernut Covernuts are used to hold and clamp tools into a spindle. Spindles operate at speeds up to 24,000 RPM so it is vital that balanced covernuts are used. Tool holders (also called "Cones") are used in ATC style systems. All tool holders and covernuts on this website are balanced. Using unbalanced covernuts or tool holders will damage the spindle. Correct installation of the collet and tool is required to avoid damaging tooling, cones, and spindles. Nut and Pull Stud is Included Collets Not Included-Click Here for Collet Selections Also we can supply you ISO15, ISO20-ER16/20, ISO40, HSK63F, NBT30, BT30, BT40 tool holders. Payment can be made by Western Union, Paypal, T/T. Welcome your inquiries.