They replace GM part number 1494258 and Ford part number 379831-S. They have a black phosphate coating.
TCT-516 Tungsten Carb. Wide Spray Insert. 5/16" straight Bore, OD= 3/4"
BCI-516 Boron Carbide, Wide Spray Insert, Bore= 5/16", Outer diam. 0.75"
Dent Fix - DF-516 Heavy Duty Hole Punch Pliers - 5/16th
Nu-Mark N-516 6" Heavy Duty Pneumatic Sander
MILTON INDUSTRIES S-516 Tire Inflator Gage Made in USA
MILTON INDUSTRIES INF GAGE-D.H. STR FT S-516
