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Cratex is a tough, resilient, rubberized abrasive that utilizes silicon carbide as the abrasive grain in a standard bond of premium grade, oil-resistant chemical rubber. Its unique cushioned action allows the abrasive grains to cut freely, smoothly and softly without gouging or digging into the work surface.

  • Clean and polish to remove surface deposits.
  • Remove rough surfaces to improve performance, appearance and cleanliness.
  • Ideal for work on jewelry, plastic parts, small castings and models.

Cratex Large Wheels are available in 8 sizes and 4 color-coded grits: Coarse, Medium, Fine, and Extra-Fine.

Max. Operating Speeds

Frequently, speeds between 30% and 80% slower than the maximum will give optimum results. When in doubt, the following general rules should be followed.

Wheel Dia. Arbor Hole Max. Operating
Speed
1″ 1/16″ or 1/8″ 25,000rpm
1″ to 1-1/2″ 1/4″ 20,000rpm
2″ 1/4″ 10,500rpm
2-1/2″ 1/4″ 8,300rpm
3″ 1/4″ 7,000rpm
4″ 1/2″ 5,250rpm
5″ 1/2″ 4,200rpm
6″ 1/2″ 3,500rpm

Color Codes/Grits

Color Type Approx.
Grit
Dark Green Coarse 40
Brown Medium 90
Red Fine 120
Light Green Extra-Fine 240

Style # Dia. x Thickness Arbor Hole
204       2″ x 1/4″       1/4″
302       3″ x 1/8″       1/4″
308       3″ x 1/2″       1/4″
404       4″ x 1/4″       1/2″
408       4″ x 1/2″       1/2″
604       6″ x 1/4″       1/2″
608       6″ x 1/2″       1/2″
612*       6″ x 3/4″       1/2″

* Style 612 is available in medium and fine grits only.

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