7mm and OVER - Twist or Masonry Drill Bit Sharpening £3.00 Quantity: at £3.00 each Add To Basket Price is per twist drill bit or masonry drill bit. We are able to sharpen bits up to 3/4" or 19mm 118 degrees is a good general purpose angle and is the angle we sharpen by default. This is the best option for wood and all round general purpose drilling. Masonry bits are no problem and are the same price. We do not sharpen flat, brad point or spade drill bits.