snippet: The <b>CRL Brass Replacement Tube</b> is an economical way to prolong the life of your <a href="https://www.dkhardware.com/search?keyword=BTD1212">CRL Brass Tube Drill</a>. By replacing only the tube, the drill's head can be retained for use without buying a complete replacement drill. The tube has two sets of grinding slots for long life. Best if used in conjunction with <a href="https://www.dkhardware.com/search?keyword=Silicon Carbide Grain">CRL Silicon Carbide Grain</a> and a <a href="https://www.dkhardware.com/search?keyword=Rubber base ring">CRL Rubber Base Drilling Ring</a>. The Brass Tube is held in place easily by pressing it onto the brass head. Important Notes: 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 must be used when using any type of electrical tool in conjunction with water or coolant. Failure to follow any of these precautions can result in operator injury. (Page 1)