Gy-Roll adjustable centre heads are suitable for drilling or tapping 2 holes or 3 holes equi-spaced in a straight line and 3 or 4 holes equi-spaced on a common PCD. A 5 spindle adjustable head is also available where the central spindle is fixed and the 4 outer spindles are adjustable on a common PCD.

Although the Gy-Roll 3 spindle adjustable head is primarily designed to suit equi-spaced holes on a common PCD, it is also suitable for various other 3 hole patterns. Therefore please supply a suitable dimensional drawing to enable us to establish compatibility with the hole pattern in question.

Also see:

Twin Spindle Drill Head

Fixed Centre Heads