3M 14308, AB14308, Square/Cross Pad Mandrel, 1/4 in 1/4-20 External, 7000045662 
Dynabrade 52861 .4 hp Straight-Line Pencil Grinder, Rear Exhaust, 25,000 RPM, 1/8" Collet 
Insize 4706-150, 120? SQUARE, 2.0×2.0″, 6928640318245
$23.48
Made of hardened stainless steel.
2.0″ x 2.0″
120 Degree
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