For rotary drilling only. Includes 5/32 pilot bit which must be used first. Ideal for drilling porcelain tiles up to a scratch hardness of 8. The drill bit will not walk, tape or center punching is no longer needed. Flat bottom parabolic flute ensures fast and efficient removal of drill dust and prevents clogging. Cuts nice, clean holes with very little or no chipping; operate drill motor 400-600 RPM
- Brand Name: ARTU
- Sub Brand: Porcelain Plus
- Drill Size: 5/16 in.
- Overall Length: 4-1/2 in.
- Material: Tungsten Carbide Tipped
- Product Type: Glass and Tile Bit Set
- Shank Type: Straight Shank
- Number in Package: 2 pc
- Packaging Type: Carded
- Shank Diameter: 1/4 in.
- Flute Length: 2-3/8 in.
