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Ceramics best friend.

When it comes to working with conventional ceramics, Sigma Polishers have no competition. The perfect companion to any conventional ceramic restoration, Sigma provides the most effective solution for contouring, blending and polishing.

Made from a proprietary matrix and infused with a high content of diamonds, Sigma Polishers work quickly, requiring only a light touch to produce an ultra-smooth surface.


Sigma is designed for conventional feldspathic ceramics.


With a wide selection of shape choices, and three different grits, Sigma is perfect for small adjustments, refining contours and paste-free, high-shine.


Sigma is available in three grades to complete your specific tasks. The coarse grit is used to contour, shape and adjust. Medium grit will blend, smooth out and prepare the surface for final glaze. The fine grit delivers a high-shine glaze without pastes or compounds.


Sigma sets the standard for ceramic polishing. The wear-resistant bonding material ensures long-lasting durability. High diamond content delivers fast cutting action and an ultra-smooth surface.

Additional Information
  • Made in Germany
  • Diamond infused, durable bonding matrix
  • 104-HP shank size (2.35 mm)
  • Sold individually


General Rotary Instructions


Technical Specifications

Shape SizeOptimal RPMMaximum RPM
Knife-Edge 26 mm x 2 mm 6,000 rpm 20,000 rpm
Wheel 22 mm x 3.2 mm 6,000 rpm 20,000 rpm
Large Point 5.5 mm x 18 mm 6,000 rpm 20,000 rpm
Small Point 3.3 mm x 7.5 mm 6,000 rpm 20,000 rpm
Mounted Wheel 11.5 mm x 2.4 mm 6,000 rpm 20,000 rpm
Disc 19 mm x 0.5 mm 6,000 rpm 20,000 rpm

Ordering Information

Shape Coarse
Knife-Edge #51500 #51530 #51560
Wheel #51503 #51533 #51563
Large Point #51506 #51536 #51566
Small Point #51509 #51539 #51569
Mounted Wheel #51512 #51542 #51572
Disc #51515 #51545 #51575