General's Pocket Scribers provide powerful scribing and etching solutions in a travel-convenient design. The locking screw chuck allows the point to be reversed into the body, condensing the tool length to about 3-1/2" and protecting the point when not in use. The hexagonal head prevents the tool from rolling off an uneven work surface. This particular item is the smaller, 1/4" diameter Pocket Scriber with a 1-7/16" replaceable steel blade.