A drill bit with a 118° angle cuts more aggressively and is best used for cutting into soft materials such as wood. A drill bit with a 135° angle is better for drilling into harder materials such as masonry. Metal drill bits, however, have a wider variety of point angles (90°, 120°, 135°, 140° and 145°).

Diamond (Tile) Bit This specialised drill bit type, including porcelain, is generally used for hard-surfaced masonry. Drilling must commence at a 45-degree angle to the cutting surface to prevent the bit from slipping, and then the bit must be slowly straightened as drilling progresses.

RYOBI introduces the 6 PC Rotary / Hammer Masonry Bit Set, designed with a 135 degree reinforced carbide tip perfect for drilling into brick, block, concrete and mortar. 135 Degree Reinforced Carbide Tip for Longer Life.