• Hole sizes shown are the minimum diameter recommended for the various wheel sizes listed and wheels will be supplied this way unless larger holes are specified on your order. Wheels with larger holes can be ordered at the same price, providing hole diameter is a multiple of 1/8" and does not exceed 1-1/4". For other hole sizes, request pricing.
• Maximum Safe Speeds in Revolutions Per Minute: 1-1/2" dia. - 15,000; 2" - 10,500; 2-1/2" - 8,300; 3" - 7,000; 4" - 5,250; 5" - 4,200; 6" - 3,600; 7" - 3,000; 8: - 2,600; 10" - 2,100. These speeds are based on 5,500 Surface Feet Per Minute. Best results are usually obtained at 30% to 80% of Maximum Safe Speed. Use light work pressure.

Cratex Wheel Mandrel - Part No. 1342
Cratex Wheel Mandrel No. 1342 has a 1/4" shank and is designed for 1/4" center hole wheels up to 3" diameter by 1/3" thick or less. The maximum safe speeds listed above are for 1/2" overhang or less (exposed mandrel length). For each additional 1/4" of overhang the maximum safe speed is decreased by at least 20%.

Cratex Dressing Block - Part No. 6404-2148
The Cratex Dressing Block is ideally suited for truing, dressing, and shaping all Cratex Rubberized Abrasive Wheels. The shape is easy to handle, and the combination of fast cutting abrasive with a hardened bond provides an easy to use, efficient, and long lasting dresser that will enable you to achieve optimum performance from all your Cratex Rubberized Abrasive Wheels. Size: 6" x 1/2" x 1/2"