Mandrel for Polishing Wheels | 8 mm Shank | 3M™ MN-AC 900/8

Mandrel 8 mm / left-hand thread

Bore: 12 mm

Clamping thickness: 30 mm

Disc diameter: <150 mm

Weight: kg
Incl. VAT (Total price depending on the VAT rate of the country of delivery), excl. Shipping Cost
2-3 Days *
Item No.

With the 3M™ MN-AC 900/8 mandrel, you can mount Abrasive fleece discs or small buffing wheels securely with common drives. Work is made easier in hard-to-reach places, when deburring edges and finishing fillet welds. Due to the compact design of the mandrel, areas that are difficult to see and access are easy to work on. The 3M™ MN-AC Mandrel allows for the secure attachment of a variety of materials and discs for machine grinding and polishing. The scope of delivery includes a mandrel with a left-hand thread, several flanges and a union nut.


  • Mandrel for holding rotating tools such as e.g. B. polishing discs, abrasive fleece discs, brushes, etc.
  • Compact design for processing small workpieces or confusing geometries and undercuts
  • Optimal use together with EICKELIT discs or polishing materials on rotating drive units
  • Very good for deburring edges and fillet welds
  • For polishing wheels up to 150 mm


  • Maximum disc thickness: approx. 30 mm
  • Diameter of mandrel: 8 mm
  • Hole: 12mm
  • Left-hand thread for clockwise-rotating drives

Scope of delivery

  • 1 mandrel 8 mm / 12 mm with left-hand thread M14
  • 1 union nut M14 / left-hand thread
  • 2 flanges 12 x 40 mm
  • 2 flanges 12 x 50 mm
  • 2 flanges 12 x 75 mm

Safety information

  • Maximum permitted disc diameter: 150 mm
  • The mandrel may only be used together with the supplied components
  • Polishing discs must always be secured with suitable flange discs
  • The flange diameter [d] must be selected so that it covers at least half the diameter of the polishing wheel [D] used: d = 1/2 D
  • The mandrel may only be operated when the mandrel is fully clamped over its entire length
  • The union nut must always be screwed in over all threads
  • Never exceed the manufacturer's specifications for the maximum speed of the clamped disks
  • Observe our instructions for working safely