Dremel 663DR - 1/4 inch Glass / Tile Drill Bit

Dremel Glass and Tile Core Drill

• Dremel 663DR
• 1/4 inch diamond coated cutting head
• 1/8 inch shank
• Required to use with Dremel Rotary Tools:
• Dremel 480 - 1/8 inch collet, or equivalent (sold separately)
• Dremel 4486 keyless chuck or equivalent (sold separately)
• Allows you to drill holes in glass with your Dremel rotary tool
• Core-style bit features superior long life
• Ideal for drilling in both flat and contoured surfaces
• Diamond grit a full 360-degrees around the circumference of the bit allows it to be used in a rasping action to enlarge a hole if needed
• Holes on the side of the bit allow the removal of glass dust from inside the bit
• Use with cutting oil (not included) to increase the speed of cut and prevent damage to the bit from overheating
• For use on glass, ceramic wall tile, glass block, glass bottles, and jewelry
• For best results, insert the accessory bit all the way into the tool and then back it out slightly before tightening down. This provides plenty of shank for the collet or chuck to hold onto the bit
• Sold in retail packaging