Our company has successfully manufactured various kinds of Electric Hammer Drill Bit(SDS-PLUS, SDS-MAX, HEXAGONAL SHANK DRILL, HSS TWISS DRILL , MASONRY DRILL, AUGER BIT); Woodworking Tools; Hollow Electric Hammer Drills; Chisels; Adaptor; Hole saw and Cutting Disc. Welcome to visiting the website: http://www.fd-instrument.com and offering some new designs, we would supply any products of the best quality at the most competitive prices according to your selected. Please don��t hesitate to contact with us any time if there��s any needs.