3M 15041, Scotch Electrical Shielding Tape 24, 1 in x 15 ft (25 mm x 4,6 m), 7000031348 
3M 14308, AB14308, Square/Cross Pad Mandrel, 1/4 in 1/4-20 External, 7000045662 
Insize 4701-1, ADJUSTABLE SQUARE, 6928640318351
$160.94
The straight edge can move and can be locked by the clamping screw.
Made of hardened stainless steel.
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