one-touch shank 19.05mm 3/4" D.O.P: 25mm M2&M35 material coating available one-touch shank 19.05mm 3/4" D.O.P: 25mmM2&M35 materialcoating availableWe also have specifications of Φ12-100mm and 30, 50, 75, or 100mm DOC. Suitable for all types of mag drill e.g. Nitto, Hougen, Alfra, Rotabroach, and BDS WANSUI® annular cutters size 12-100mmD.O.C 30,50,75,100mmweldon shank/one-touch shank 19.05mm 3/4 ...