16mm SDS-TOP Quadro X concrete/masonry/hammer drill bit 4-crossed-tips 16x260mm  - £5.01 : SDS Top | Drill bits | Stone and concrete working accessories | Machine accessories : Drill Bits and other cutting tools online store
Diameter (mm): 16 Total length (mm): 260 Working length (mm): 190 Tool shank: SDS Top
Putting, fast replaceable SDS Top drills for pneumatic rotary hammers have a 14 mm diameter of a shank and have 4 oval-shaped grooves, from which on one side there are 2 closed and 2 open grooves. In order to calculate from the total length of a drill its pararell length, one has to substract 70 mm from the total length. This is the length at which the drill is putted on the hammer.