Dynabrade 78423 4-1/2" Dia. x 3/8" Very Fine DynaBrite Surface Conditioning Disc, 25/pack 
Dynabrade 51301 .5 hp Straight-Line Die Grinder 
Dynabrade 50010 Collet, 3/8″-24 Female Thread, 1/4″ Capacity, 3-Piece Collet
$83.35
3/8″-24 Female Thread, 1/4″ Capacity, 3-Piece Collet
Use on Die Grinders with 3/8″ Thread Spindle.
Collet Specifications
Mfr. Part # 50010
3/8″-24 Female Thread, 1/4″ Capacity, 3-Piece Collet
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