Cartridge Roll Mandrels – 6mm Shank

This 6mm mandrel is designed specifically for use with Abrasive Cartridge Rolls and is the ideal accessory for precision engineering workshops, toolrooms and production lines. The mandrel’s 6mm shank fits standard 6mm collets and chucks, so it will mount cleanly on air die grinders, electric drills, pillar drills, dremel-style micro-motor systems and other rotary tools commonly used in precision finishing.

• Universal 6mm shank — fits standard 6mm collets and chucks used in most precision tools.

• Hardened steel construction — durable and resilient for repeated mounting and high-speed use.

• Pilot/pilot-thread design for secure grip — pilot diameter and thread/profile hold both straight and tapered cartridge rolls firmly in place during operation.

• Balanced and precision-turned shaft — minimises run-out for smoother finishes and safer high-RPM use.

• Quick fitting & interchangeable — easily change rolls during job runs to switch grit, shape or finish stage.

• Reliable holding — engineered pilot and thread ensure cartridge rolls remain secure during high-speed finishing, reducing vibration and improving surface finish.

• Versatile tool compatibility — 6mm shank fits a wide range of grinders and hand pieces used in precision engineering, making the mandrel a ‘one tool’ solution for many operators.

• Lower downtime — quick roll changes and robust construction reduce stoppages and tooling replacement frequency.

• Improved finish control — low run-out and secure mounting help produce consistent, repeatable surface finishes inside bores, fillets and narrow channels.

• Mounting straight or tapered abrasive cartridge rolls for internal bore finishing, dead-end holes, fillets and concave contours.

• Use with rotary tools such as die grinders, air tools, flexible shaft machines, pillar drills and micro motor systems for precision engineering, aerospace, automotive, tool & die, and mouldmaking.

• Production deburring, blending, polishing and final surface preparation before coating or assembly.

• Shank: 6mm (fits 6mm collets/chucks).

• Pilot / arbor: Check the pilot diameter of your cartridge roll (the mandrel pilot must match the roll’s arbor hole) — our mandrel range is matched to Moleroda cartridge roll arbor sizes for a perfect fit. If you use third-party rolls, ensure pilot/arbor sizes match or choose an appropriate mandrel.

• Recommended speeds: Use tool manufacturer RPM guidance for the cartridge roll size and grit selected; higher RPMs increase cut but also heat — moderate pressure and continuous movement give best finish.

• Safety: Always wear eye and respiratory protection and follow standard workshop safety procedures.

Q: Will this mandrel fit all Moleroda’s abrasive cartridge rolls?
A: Yes — Moleroda’s mandrel is supplied on a 6mm shank and is universally compatible with all Moleroda’s cartridge rolls. For third-party rolls, confirm the roll’s arbor hole equals the mandrel pilot diameter.

Q: What tools can I use this mandrel with?
A: The 6mm shank fits many rotary tools, such as die grinders, air tools, flexible shaft machines, pillar drills and micro motor systems. Always ensure your tool’s collet or chuck accepts a 6mm shaft.

Q: How is the cartridge roll secured to the mandrel?
A: A pilot/thread (or tapered pilot depending on mandrel type) engages the cartridge roll’s arbor hole and holds it securely during rotation. Our mandrels are made to industry standards to ensure positive grip and low run-out.

Q: Can I use the mandrel at high RPMs?
A: Yes, within manufacturer recommended limits. Use appropriate mandrels for the cartridge roll diameter and ensure the roll is correctly mounted to avoid imbalance. Moderate pressure and steady movement reduce overheating and prolong life.