Hex ball end driver 4mm XL105 It also has adjustable clamping

It also has adjustable clamping pressure to suit different plate materials

They sat over the feed pile and are used to control the top sheet into the forwarding roller

The GTO46 Numbering form roller is one of the pair of rollers which ink the numbering boxes

This delivery lamp was in use for S-range letterpress cylinders also older SM102 pre Drupa 1986 and SORM

however of these 3 styles they won't affect the operation of the roller

Hex ball end driver 4mm XL105 It also has adjustable clampingThis is a well made tool which is ideal for locking numbering boxes onto the rings. The "screwdriver" grip reduces the common error of using too much force on the straight numbering boxes which causes damage to the frame. It is also a useful tool for locking perforating wheels on folding machines.