5/16"-27 UNS HSS Bottoming Tap | DWTST5/16-27B | DrillsandCutters.com
10/32 TO 5/16-27 THREAD
5/16 27 NS THREAD RING GAGE .3125 GO ONLY P.D. = .2884 5/16-27 QUALITY TOOLS - M & J Tooling LLC
Cleaning Rod - Shotgun Adapter - Adapts #8-32 to #5/16-27
LMYTSHOP 2pcs/Set HSS Right Hand Thread tap and die Set UNC 5/16 Unified Screw Dies taps Sets 5/16-20 5/16-24 5/16-27 5/16-28 5/16-32 5/16-40 (Color : 27, Size : UN 5l16 -) : Amazon.co.uk: DIY & Tools
Dewey Shotgun Bronze Bristle Bore Brushes 5/16 x 27 Male Thread — Reloading Solutions Limited