Washington Mills Ceramics
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DURAMEDIA® Steel Shape Chart

ROUND (BALLS)Order SizeA--
Specified for critical applications only. Manufactured to the nominal diameter dimension with no visual surface irregularities. 1/8 .125 - -
THRU THRU - -
1 1 - -
BARRELOrder SizeAB-
The most common ball-type media. Slight, often microscopic surface imperfections may exist, which have no detrimental effects. 1/4 .250 .235 -
9/32 .2812 .253 -
5/16 .3125 .275 -
11/32 .3437 .309 -
3/8 .375 .344 -
1/2 .500 .450 -
CONESOrder SizeAB-
Very popular for vibratory finishing applications requiring aggressive action. Center flange and tapered crowns provide contact angles on curved surfaces. Small sizes are ideal for intricate or ornamental designs. 3/16 .155 .200 -
5/16 .265 .315 -
1/2 .470 .535 -
25/32 .630 .781 -
BALL CONESOrder SizeAB-
The burnishing capabilities of balls and cones in one scientifically proportioned shape. See dimensional specifications chart for configuration. 1/8 .125 .170 -
5/32 .215 .270 -
3/16 .270 .300 -
1/4 .320 .400 -
5/16 .375 .465 -
OVAL BALLSOrder SizeAB-
Used for vibratory finishing and barrel tumbling operations when a scratch and dimple-free finish is required. This shape introduces an oscillating motion to the finishing mass and provides more surface-to-surface contact than balls. 1/8 .245 .125 -
5/32 .320 .156 -
3/16 .270 .300 -
5/16 .535 .312 -
3/8 .630 .375 -
DIAGONALSOrder SizeABC
Particularly suited to odd shapes where lodging might be a problem or for parts with hard to reach angles. Beveled edges of diagonally cut ends provide effective finishing action in corners. The cylindrical body offers wide area contact. 1/8 .125 .125 .225
5/32.156.156.275
3/16.187.187.325
7/32.218.218.380
1/4.250.250.445
5/16.312.312.545
3/8.375.375.655
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