The
AT-19 Adjustable Knurling Holder is self-centering
and adjustable by a conveniently located knurling knob which
provides the ideal near-vertical axis approach angle for a wide range of stock
diameters. Spindle and cross-slide pressure are minimal, thus knurling of thin
wall tubing is easily performed. The AT-19 is designed for use in any
standard turret tool post or other open-slot holder; it is
also available with dovetail mounting (series 19) to fit Aloris
tool posts. Precision ground 3/4″ O.D. x 3/8″ wide,
high-speed medium diamond knurls are supplied unless otherwise specified.

The
AT-20 Combo CNC Bar Puller Knurling Tool mounts into a tool
slot on CNC turrets and are easily adjustable with knurls installed.
The range is 1/8″-2″. Opposing forces on knurls create
little or no force on the machine. Just remove the two knurl lock
screws, replace with bar grippers and use as a heavy duty bar
puller. There are no gripper springs to remove when changing bar diameters.
Just loosen the lockscrew, insert Allen wrench and dial to the
next size, preload approximately 1/8 rev., lock locking screw. Furnished with
1″ shank without knurls or grippers. Minimum clearance required between
turret and covers is 3 1/8″.