1.Carbide-tipped tools feature cutting edges of carbide for wear resistance and a steel shank for toughness.
2.Spear point carbide tip shape design for extreme drilling rough tile, ceramics, porcelains and glass, etc.
3.Cross-tipped carbide tips which improve durability, accuracy and speed than standard glass and tile bits.
4.Quick change shank reduces slipping in standard chucks and is compatible with all 1/4" quick-change chucks.
5.Can not be used on hammer mode, for use with rotary drills only.
6.Best result with lower rpm and good cooling with water, vinegar and turpentine.