2-1/2" Cast Iron Rubber Base Drilling Ring

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CRL RBR6 2-1/2" Cast Iron Rubber Base Drilling Ring

Item #: RBR6 by CR Laurence

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In Stock $90.81 /each


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  • Cast Iron Rings with Rubber Bases
  • Eliminates Putty Dam
  • Retains Abrasive Grain Slurry



Fits Drill Diameters

1/2" (12.7 mm) to 2-1/2" (64 mm)

For Use On

1/2" To 2-1/2" Diameter Drills

Use these CRL Rubber Base Drilling Rings to retain the abrasive grain slurry while the drill is rotating and cutting into the glass. The cast iron rings have rubber bases to hold them securely to the glass, providing a proper seal, and allowing the coolant to mix with the grain for quick, efficient drilling. They are available in four diameters, individually or as a set.
Product Warning:
Always wear the proper safety gear including eye protection when drilling glass. Work should be performed on a flat, horizontal surface. A Ground Fault Circuit Interrupter must be used when using any type of electric tool in conjunction with water or coolant. Failure to follow any of these precautions can result in operator injury.

Most shipping weights are approximate and have not been verified. If the exact weight is needed in order to determine shipping costs, and shipping costs are required in order for you to complete your order, please request this prior to submitting your order by contacting CRL Customer Service. Product images shown are of the actual product or a close representation. Colors can vary depending on your computer's video card and on how your monitor's color is adjusted.