Porcelain Speedbit - with Superior Designed Carbide Tip (5 Pack)

The Porcelain Speedbit(R) was specifically designed for drilling efficiently through hard surfaces. Its speed and durability distinguish itself from other standard carbide bits. With a specially formulated mix of metals and superior designed carbide tip, the Porcelain Speedbit(R) makes installations quicker and easier, therefore, more profitable. Comes in a package of five units. 3 Easy Steps for Maximum Durability: 1. DIP IN WATER before drilling and about every 5 seconds during drilling (more often when going thru harder materials). We find dipping in water is more effective at cooling the Speedbit than spraying. 2. FIRM PRESSURE: Let the bit do the work. Drill straight into hole and do not wiggle drill. 3. Drilling speed of 2,300 rpms (which is typically FULL SPEED on an 18-volt CORDLESS DRILL (NO Hammer Drills)). Most other carbide bits recommend slower speeds of 400-800 rpms. Do not apply excessive pressure. Do not use in hammer drills. Do not use dull or damaged bit. Wear ANSI-a