M3 And M4 Heat-Set Insert Scoop Tray
A 100 x 70 x 16 mm bench tray with two 45 x 50 mm scoop wells for loose brass heat-set inserts. The cove at the front of each well lets you slide inserts out with a fingertip. Along the back is a row of test bores sized to the verified insert holes, 4.0 mm for M3 and 5.5 mm for M4, each 6 mm deep. Set a stray insert on a bore and you can tell which size it is from which bore it sits on, so mixed M3 and M4 inserts no longer end up sharing one bag.
organizer heat-set-insert m3 m4