Description
Secure your cutting tools with confidence using the Magnum R8COL14, a precision-machined 1/4-inch collet for the milling machine. Designed to seat perfectly into standard R-8 spindles, this draw bolt collet ensures high clamping force and minimal runout, keeping your end mills running true during demanding shop operations.
Features
- 1/4-inch clamping capacity – Provides a tight, concentric grip on 1/4-inch shank tooling
- Standard R-8 taper – Ensures compatibility with the most common manual milling machine spindles
- Precision ground exterior – Minimizes tool runout to extend cutter life and improve surface finishes
Specifications
- Collet Series: R-8
- Clamping Diameter: 1/4″ (6.35 mm)
- Supplier Part Number: MAG-R8COL14
- KMS Product Code: MAG-R8COL14
Compatibility
Compatible with any milling machine utilizing a standard R-8 spindle taper and drawbar system.
Common Shop Applications
- Holding 1/4-inch shank end mills for slotting and profiling
- Clamping 1/4-inch edge finders to accurately locate workpiece datums
Recommended Shop Add-Ons
- Magnum End Mill
- Magnum Edge Finder
Frequently Asked Questions
Q: Do I need a drawbar to use this? A: Yes, R-8 collets require a threaded drawbar running through the machine spindle to pull the collet up and compress it around the tool.
Q: Can I use this to hold metric tool shanks? A: Collets have a very narrow clamping range; you should only use a 1/4-inch (6.35mm) collet for exactly 1/4-inch shanks, not slightly smaller metric sizes like 6mm.









