Use CRL Silicon Carbide Grain for almost any glass drilling need. Most commonly used with CRL Steel and Brass Tube Drills, the abrasive action of the silicon carbide is applied by the rotation of the tube drill. The slots in the drill pick up the grain, which causes the glass to wear. Can be used to drill holes for speak tube applications or outlets. You can also use it on roughing plates for grinding and polishing.
NOTE: Always wear the proper safety gear, including gloves and eye protection, when drilling glass. Work should be performed on a flat, horizontal surface.
A Cat. No. GF1 Ground Fault Circuit Interrupt Device 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.
Product Warning:
Always wear the proper safety gear including gloves and eye protection when drilling glass. Work should be performed on a flat, horizontal surface. A Ground Fault Circuit Interrupter GFI 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.