CS-PB01 Push Broach Combination Set

A set of scriber blades with a handle

A combination that covers the scribing of panel lines across the whole range of blade widths included. The handle is shared and the blades are changed in it according to how wide the line is to be. Scribing is done by pulling toward yourself and the material is removed by the edge, not by the point, so the tool leaves behind a groove with a flat bottom and a constant width; that is exactly what tells clean panel lines apart from uneven scratches, which stand out as a row of scratches once varnished.

What it is suited to

• Restoring engraving that sanding and filling have weakened
• Suggesting new lines and seams that a kit does not have
• Work in several scales, where a different width of line is needed
• Scribing into plastic as well as into a harder resin part

How it is used

Clamp the blade with the shortest possible reach, guide it along a metal straightedge or a flexible template and scribe with repeated light passes. Do not add pressure; the edge is to do the work. Sweep the removed material away with a brush as you go, otherwise it gets pressed back into the line under the blade. Finally run fine abrasive paper over the finished engraving so that the burr at the edges disappears.

What to watch out for

The edge is of a hard and therefore brittle material; levering it sideways will snap it. Store the blades separately so that the tips do not knock against each other, and wipe them after work. A model, paints and a straightedge are not included in the package.

The set pays off for anyone who scribes regularly and in several scales. Anyone who needs a single width will manage with a separate blade and handle; a combination set makes sense precisely when the widths alternate with the model being built.