3M 10112, Heavy Duty Stripping Pads, 3 3/4 in x 6 in x 7/16 in, 7010290303 
Insize 2277-2, DOUBLE SQUARE, 6″, 6928640374838
$38.99
Graduation 1/8″, 1/16″,1/32″,1/64″
Accuracy: ?2min for 90? square
Hardened and chrome plated blade
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$38.99
Graduation 1/8″, 1/16″,1/32″,1/64″
Accuracy: ?2min for 90? square
Hardened and chrome plated blade