Forster - Gunsmith Screwdriver Set No. 15 Wall thickness can be measured

Wall thickness can be measured with a tubing micrometer

Designed to fit 38mm ARCA rails

oxidize or evaporate

Included in the BR7 kit are four different size spacers

Forster - Gunsmith Screwdriver Set No. 15 Wall thickness can be measured(the handles may not be as they appear in the photo due to supplier changes) Every gunsmith knows that using the right screwdriver for the job saves time and effort and can prevent damage to valuable firearms and accessories. Forster offers a collection of specialty screwdrivers designed specifically for the unique screws frequently encountered by gunsmiths. These U. S. manufactured, hollow ground screwdrivers are versatile enough to be adaptable to