Description
Equip your milling machine for intermediate tooling with the Magnum R8COL58, a precision-ground 5/8-inch collet. Designed to interface seamlessly with standard R-8 spindles, this draw bolt collet provides excellent concentricity and gripping power, minimizing vibration and runout for your mid-sized cutters in the shop.
Features
- 5/8-inch clamping diameter – Accurately secures 5/8-inch shank end mills and accessories
- Standard R-8 interface – Drops directly into the spindle of most manual knee mills
- Hardened and ground steel – Withstands repeated compression cycles without losing accuracy
Specifications
- Collet Series: R-8
- Clamping Diameter: 5/8″ (15.87 mm)
- Supplier Part Number: MAG-R8COL58
- KMS Product Code: MAG-R8COL58
Compatibility
Compatible with any milling machine utilizing a standard R-8 spindle taper and drawbar system.
Common Shop Applications
- Securing 5/8-inch shank end mills for slotting operations
- Holding heavy-duty 5/8-inch boring head arbors
Recommended Shop Add-Ons
- Magnum End Mill
- Magnum Boring Head
Frequently Asked Questions
Q: Will this fit an MT3 spindle? A: No, this collet features an R-8 taper profile and will only fit machines designed with an R-8 spindle receiver.
Q: Can I clamp a tool slightly smaller than 5/8-inch? A: No, spring collets must only be used on shanks matching their exact nominal size to prevent springing the collet or experiencing dangerous tool pull-out.









