Drills Three Size Holes
The long taper on the CRL "Three-In-One" Drill
makes it useful for drilling 3/16, 1/4 or 5/16 inch (4.8, 6.4 or 7.9 millimeter)
holes. The convenient "step-down" feature makes a gradual opening in the glass,
resulting in a cleaner cut. Proven to last longer, it drills cleaner holes,
faster than others. The one inch (25.4 millimeter) long blade is made from
tungsten carbide steel. Great for drilling tile, ceramic and glass.
Recommended RPM: 500 - 600