Shank Diameter: Ø3.2mm
Tip Diameter: Ø4mm
Shape: Pyramid

The Mini Pyramidal Mandrel is a specialized mounting accessory designed for enthusiasts and professionals who
require absolute precision when using unmounted polishing and grinding tools. This mandrel features a standard 3.2mm
(1/8′) shank, ensuring a perfect, wobble-free fit with almost all modern rotary tools, die grinders, and flexible
shafts. Its heavy-duty construction is built to withstand high rotational speeds, providing the stability needed for
delicate detailing work.

Distinguished by its unique pyramidal tip shape, this mandrel offers an optimized seating surface for your
accessories. The 4mm tip diameter is engineered to provide a secure grip on small polishing wheels, felt bobs, and
rubberized abrasives. The tapered geometry of the pyramid head ensures that your attachments are centered perfectly,
which drastically reduces vibration and prevents ‘run-out’ during high-speed operation.

This mandrel is particularly effective for tasks that involve internal polishing or working in tight geometries
where a standard flat-head mandrel might interfere with the workpiece. The streamlined design allows for better
visibility and access, while the high-strength steel composition ensures it won’t flex or bend under moderate
pressure. It is an indispensable tool for jewelers, dental technicians, and hobbyists who demand a reliable,
professional-grade mounting solution for their custom abrasive setups.

Application:

• Jewellery finishing
• Automotive metal trim polishing
• Deburring machined parts
• Model making and restoration
• Precision polishing of small or delicate components
• Insert the mandrel into the rotary tool and tighten the collet or chuck.
  Mount the polishing point by:
  • Pressing onto post (smooth post mandrel), or
  • Screwing onto the threaded mandrel (wheel or cylinder types).

  Run at medium speed and use light pressure.
  Let the abrasive do the work. Do not force.