Holds roll pins perfectly aligned for starting correctly. Especially good on the tiny, tough-to-grab ones, or those in tight places. 1/16" is notched to clear M16/AR-15 rear sight. 3.5mm excellent for holding the pin that retains the breech block on Sig handguns. Finish driving with roll pin punch. O/A in chart means "Overall". Available individually or as a set of 5. Mfg: Brownells SPECS: Steel, knurled handle. Set of 5.
