3-jaw, 50mm self-centring micro scroll chuck with reversible jaws

Jut like a full sized engineering chuck, but only 50mm in diameter, our MM50 micro-chuck is ideal for small engineering tasks and spindle work, and weighs under half a kilogram.

The MM50 is a miniature, 3-jaw, self-centering scroll chuck. It comes complete with 2 sets of jaws - 1 set is internally stepped and the other is externally stepped, which allows the chuck to grip in both compression and expansion modes.

To keep the chuck small, the MM50 micro-chuck is tightened and loosed using 2 tommy bars, (supplied with the chuck) and the rear of the chuck has an M12 x 1  thread, which will mount directly onto many small engineering lathes. For people with woodturning lathes, we  have thread adaptors available, with a choice of M33x3.5, 1" x 8 tpi, and ³/₄" x 16tpi to suit the most common lathe spindle sizes. These screw into the rear of the micro-chuck and them mount directly onto the lathe spindle. We also have morse taper arbors available in 1MT, 2MT and 3MT, which also screw into the rear of the micro-chuck, thereby allowing the chuck to be mounted on any lathe.

Our micro-chuck is also available in a 4-jaw version. (MM54)