3M 26015, PPS Series 2.0 Adapter, Type S8, 12 mm Male, 1.0 mm Thread, 7100135931 
Insize 2280-300, TRY SQUARE, 11.8_5.9″, 6974029775185
$39.86
Graduation 1mm
Aluminum blade and base
4 milled surfaces
Retractable metal ledge support
Etchings and holes for beveling and framing: 10?, 15?, 22.5?, 30?, 45?, 50? and 60?
Etchings and holes every cm for fluid pencil marking
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