SPTH103 | Holemaker Tapping Head 8-20mm 3MT AXIAL FLOAT TAPPING HEADS Protection against tap breakage ensured by an ultra sensitive and smooth multi-position operating ball-clutch. Forward and reverse ball drive design transmits rotational power to the tap and disengages smoothly and silently. Axial float ensures smooth tapping and better thread profile. Cushioned drive incorporating compression and extension eliminates the possibility of cross threading during the tapping process and ensures clean and accurate threads. A planetary gear reversing mechanism transmits smooth positive reverse to the tap retraction and it retracts 75% faster than it enters. Accurate depth control by means of its precise neutral mechanism Size: 8-20mm Tapping Head With #3 MT