There are many factors involved in selecting the right abrasive for your application. One Factor is...Size & Shape. GRIER offers all standard shapes plus many custom shapes for your application Featured here are “A”, “B” and “W” Shapes These parts are mounted on either 1/8” or 1/4” mandrels as our standard, but other sizes, shapes and mandrel diameters are available upon request.
A's
| A's - 1/4" DIA. MANDRELS | |||
| SHAPE | DIA. (in.) | THICK. (in.) | MAX RPM @ 1/2" OVERHANG |
| A1 | 3/4 | 2 1/2 | 19,800 |
| A2 | 1 | 1 1/4 | 38,200 |
| A3 | 1 | 2 3/4 | 16,100 |
| A4 | 1 1/4 | 1 1/4 | 30,560 |
| A5 | 3/4 | 1 1/8 | 45,000 |
| A6 | 3/4 | 1 1/8 | 39,000 |
| A11 | 7/8 | 2 | 19,860 |
| A12 | 11/16 | 1 1/4 | 48,000 |
| A13 | 1 1/8 | 1 1/8 | 33,950 |
| A14 | 11/16 | 7/8 | 55,560 |
| A15 | 1/4 | 1 1/16 | 72,750 |
| A21 | 1 | 1 | 34,500 |
| A22 | 3/4 | 5/8 | 50,930 |
| A23 | 3/4 | 1 | 39,370 |
| A24 | 1/4 | 3/4 | 76,500 |
| A25 | 1 | 1 | 35,620 |
| A26 | 5/8 | 5/8 | 61,120 |
| A31 | 1 3/8 | 1 | 27,780 |
| A32 | 1 | 5/8 | 38,200 |
| A33 | 1 | 1/2 | 38,200 |
| A34 | 1 1/2 | 3/8 | 25,470 |
| A35 | 1 | 3/8 | 38,200 |
| A36 | 1 5/8 | 3/8 | 23,520 |
| A37 | 1 1/4 | 1/4 | 30,560 |
| A38 | 1 | 1 | 34,500 |
| A39 | 3/4 | 3/4 | 47,250 |
| A40 | 3/4 | 3/4 | 47,250 |
B's
| B's - 1/8" DIA. MANDRELS | |||
| SHAPE | DIA. (in.) | THICK. (in.) | MAX RPM @ 1/2" OVERHANG |
| B41 | 5/8 | 5/8 | 33,750 |
| B42 | 1/2 | 3/4 | 33,750 |
| B43 | 1/4 | 5/16 | 81,370 |
| B44 | 7/32 | 3/8 | 68,400 |
| B45 | 3/16 | 5/16 | 104,250 |
| B46 | 1/8 | 5/16 | 105,000 |
| B47 | 1/8 | 5/32 | 105,000 |
| B51 | 7/16 | 3/4 | 45,370 |
| B52 | 3/8 | 3/4 | 45,370 |
| B53 | 1/4 | 5/8 | 60,000 |
| B54 | 1/4 | 1/2 | 60,000 |
| B55 | 1/8 | 1/4 | 105,000 |
| B61 | 3/4 | 5/16 | 38,250 |
| B62 | 1/2 | 3/8 | 41,020 |
| B63 | 1/4 | 3/16 | 92,400 |
| B64 | 1/4 | 1/16 | 105,000 |
| B65 | 1/8 | 1/8 | 105,000 |
| B70 | 3/4 | 1/8 | 50,930 |
| B71 | 5/8 | 1/8 | 61,120 |
| B72 | 1/2 | 1/8 | 73,500 |
| B73 | 1/2 | 1/8 | 73,500 |
| B74 | 7/32 | 3/32 | 105,000 |
| B81 | 3/4 | 3/16 | 50,930 |
| B82 | 1/2 | 1/4 | 76,390 |
| B83 | 3/8 | 3/16 | 87,600 |
| B84 | 5/16 | 3/16 | 105,000 |
| B90 | 1/2 | 1/2 | 34,500 |
| B91 | 1/2 | 5/8 | 34,500 |
| B92 | 1/4 | 1/4 | 81,370 |
| B93 | 3/16 | 3/16 | 105,000 |
| B94 | 11/64 | 3/32 | 105,000 |
| B95 | 1/8 | 3/16 | 105,000 |
| B96 | 1/8 | 1/4 | 105,000 |
| B97 | 1/8 | 3/8 | 105,000 |
| B98 | 3/32 | 1/4 | 105,000 |
| B101 | 5/8 | 11/16 | 33,750 |
| B102 | 5/8 | 1/2 | 45,370 |
| B103 | 5/8 | 3/16 | 61,120 |
| B104 | 5/16 | 3/8 | 68,400 |
| B105 | 1/4 | 1/4 | 104,250 |
| B106 | 1/8 | 7/64 | 105,000 |
| B111 | 7/16 | 11/16 | 33,750 |
| B112 | 3/8 | 1/2 | 45,370 |
| B113 | 1/4 | 1/4 | 81,370 |
| B114 | 7/32 | 3/8 | 68,400 |
| B115 | 3/32 | 1/8 | 105,000 |
| B121 | 1/2 | 1/2 | 45,370 |
| B122 | 3/8 | 3/8 | 61,650 |
| B123 | 3/16 | 3/16 | 104,250 |
| B124 | 1/8 | 1/8 | 105,000 |
| B131 | 1/2 | 1/2 | 34,500 |
| B132 | 3/8 | 1/2 | 45,370 |
| B133 | 3/8 | 3/8 | 54,000 |
| B134 | 5/16 | 3/8 | 61,650 |
| B135 | 1/4 | 1/2 | 60,000 |
| B136 | 1/4 | 5/16 | 77,250 |
| B's - 1/4" DIA. MANDRELS | |||
| SHAPE | DIA. (in.) | THICK. (in.) | MAX RPM @ 1/2" OVERHANG |
| B41 | 5/8 | 5/8 | 61,120 |
| B42 | 1/2 | 3/4 | 61,120 |
| B51 | 7/16 | 3/4 | 81,000 |
| B52 | 3/8 | 3/4 | 81,000 |
| B61 | 3/4 | 5/16 | 50,930 |
| B62 | 1/2 | 3/8 | 71,250 |
| B71 | 5/8 | 1/8 | 61,120 |
| B72 | 1/2 | 1/8 | 76,390 |
| B73 | 1/2 | 1/8 | 76,390 |
| B91 | 1/2 | 5/8 | 61,500 |
| B101 | 5/8 | 11/16 | 61,120 |
| B102 | 5/8 | 1/2 | 61,120 |
| B111 | 7/16 | 11/16 | 66,000 |
| B112 | 3/8 | 1/2 | 81,000 |
| B121 | 1/2 | 1/2 | 76,390 |
| B131 | 1/2 | 1/2 | 61,500 |
| B132 | 3/8 | 1/2 | 81,000 |
W's
| W's - 1/8" DIA. MANDRELS | |||
| SHAPE | DIA. (in.) | THICK. (in.) | MAX RPM @ 1/2" OVERHANG |
| W141 | 3/32 | 5/32 | 105,000 |
| W142 | 3/32 | 1/4 | 105,000 |
| W143 | 1/8 | 1/8 | 105,000 |
| W144 | 1/8 | 1/4 | 105,000 |
| W145 | 1/8 | 3/8 | 105,000 |
| W146 | 1/8 | 1/2 | 105,000 |
| W147 | 5/32 | 1/32 | 105,000 |
| W148 | 5/32 | 1/16 | 105,000 |
| W149 | 5/32 | 1/4 | 105,000 |
| W150 | 3/16 | 1/16 | 105,000 |
| W151 | 3/16 | 1/8 | 105,000 |
| W152 | 3/16 | 1/4 | 105,000 |
| W153 | 3/16 | 3/8 | 80,850 |
| W154 | 3/16 | 1/2 | 70,500 |
| W156 | 1/4 | 1/32 | 105,000 |
| W157 | 1/4 | 1/16 | 123,000 |
| W158 | 1/4 | 1/8 | 105,000 |
| W159 | 1/4 | 3/16 | 92,400 |
| W160 | 1/4 | 1/4 | 81,370 |
| W161 | 1/4 | 5/16 | 77,250 |
| W162 | 1/4 | 3/8 | 68,400 |
| W163 | 1/4 | 1/2 | 60,000 |
| W164 | 1/4 | 3/4 | 45,900 |
| W165 | 5/16 | 1/16 | 107,400 |
| W166 | 5/16 | 1/8 | 96,970 |
| W167 | 5/16 | 1/4 | 75,000 |
| W168 | 5/16 | 5/16 | 68,400 |
| W169 | 5/16 | 3/8 | 61,650 |
| W170 | 5/16 | 1/2 | 52,500 |
| W171 | 5/16 | 3/4 | 37,120 |
| W172 | 3/8 | 1/16 | 99,370 |
| W173 | 3/8 | 1/8 | 87,600 |
| W174 | 3/8 | 1/4 | 69,000 |
| W175 | 3/8 | 3/8 | 54,000 |
| W176 | 3/8 | 1/2 | 45,370 |
| W177 | 3/8 | 3/4 | 33,750 |
| W178 | 3/8 | 1 | 26,250 |
| W180 | 1/2 | 1/32 | 79,000 |
| W181 | 1/2 | 1/16 | 76,390 |
| W182 | 1/2 | 1/8 | 73,500 |
| W183 | 1/2 | 1/4 | 51,750 |
| W184 | 1/2 | 3/8 | 41,020 |
| W185 | 1/2 | 1/2 | 34,500 |
| W186 | 1/2 | 3/4 | 26,250 |
| W187 | 1/2 | 1 | 20,620 |
| W190 | 5/8 | 1/16 | 61,120 |
| W191 | 5/8 | 1/8 | 58,870 |
| W192 | 5/8 | 1/4 | 43,120 |
| W193 | 5/8 | 3/8 | 32,250 |
| W194 | 5/8 | 1/2 | 29,400 |
| W195 | 5/8 | 3/4 | 22,120 |
| W196 | 5/8 | 1 | 17,620 |
| W199 | 3/4 | 1/16 | 50,930 |
| W200 | 3/4 | 1/8 | 50,930 |
| W201 | 3/4 | 1/4 | 38,250 |
| W202 | 3/4 | 3/8 | 30,600 |
| W203 | 3/4 | 1/2 | 25,500 |
| W204 | 3/4 | 3/4 | 18,900 |
| W210 | 7/8 | 1/16 | 43,650 |
| W211 | 7/8 | 1/8 | 43,650 |
| W212 | 7/8 | 1/4 | 33,750 |
| W213 | 7/8 | 3/8 | 27,000 |
| W215 | 1 | 1/8 | 38,200 |
| W216 | 1 | 1/4 | 30,520 |
| W's - 1/4" DIA. MANDRELS | |||
| SHAPE | DIA. (in.) | THICK. (in.) | MAX RPM @ 1/2" OVERHANG |
| W176 | 3/8 | 1/2 | 81,000 |
| W177 | 3/8 | 3/4 | 66,000 |
| W178 | 3/8 | 1 | 55,200 |
| W179 | 3/8 | 1 1/4 | 45,750 |
| W182 | 1/2 | 1/8 | 76,390 |
| W183 | 1/2 | 1/4 | 76,390 |
| W184 | 1/2 | 3/8 | 71,250 |
| W185 | 1/2 | 1/2 | 61,500 |
| W186 | 1/2 | 3/4 | 51,000 |
| W187 | 1/2 | 1 | 40,500 |
| W188 | 1/2 | 1 1/2 | 30,370 |
| W189 | 1/2 | 2 | 24,000 |
| W190 | 5/8 | 1/16 | 61,120 |
| W191 | 5/8 | 1/8 | 61,120 |
| W192 | 5/8 | 1/4 | 61,120 |
| W193 | 5/8 | 3/8 | 61,120 |
| W194 | 5/8 | 1/2 | 56,400 |
| W195 | 5/8 | 3/4 | 46,500 |
| W196 | 5/8 | 1 | 35,250 |
| W197 | 5/8 | 2 | 21,000 |
| W198 | 5/8 | 2 1/2 | 16,500 |
| W201 | 3/4 | 1/4 | 50,930 |
| W202 | 3/4 | 3/8 | 50,930 |
| W203 | 3/4 | 1/2 | 50,930 |
| W204 | 3/4 | 3/4 | 42,750 |
| W205 | 3/4 | 1 | 34,500 |
| W206 | 3/4 | 1 1/4 | 28,720 |
| W207 | 3/4 | 1 1/2 | 24,000 |
| W208 | 3/4 | 2 | 18,750 |
| W209 | 3/4 | 2 1/2 | 15,000 |
| W211 | 7/8 | 1/8 | 43,650 |
| W212 | 7/8 | 1/4 | 43,650 |
| W213 | 7/8 | 3/8 | 43,650 |
| W215 | 1 | 1/8 | 38,200 |
| W216 | 1 | 1/4 | 38,200 |
| W217 | 1 | 3/8 | 38,200 |
| W218 | 1 | 1/2 | 38,200 |
| W219 | 1 | 3/4 | 35,100 |
| W220 | 1 | 1 | 25,500 |
| W221 | 1 | 1 1/2 | 19,120 |
| W222 | 1 | 2 | 15,900 |
| W223 | 1 | 2 1/2 | 12,370 |
| W224 | 1 | 3 | 10,800 |
| W225 | 1 1/4 | 1/4 | 30,560 |
| W226 | 1 1/4 | 3/8 | 30,560 |
| W227 | 1 1/4 | 1/2 | 30,560 |
| W228 | 1 1/4 | 3/4 | 30,520 |
| W229 | 1 1/4 | 1 | 24,000 |
| W230 | 1 1/4 | 1 1/4 | 20,400 |
| W231 | 1 1/4 | 1 1/2 | 17,620 |
| W232 | 1 1/4 | 2 | 14,250 |
| W235 | 1 1/2 | 1/4 | 25,470 |
| W236 | 1 1/2 | 1/2 | 25,470 |
| W237 | 1 1/2 | 1 | 22,500 |
| W238 | 1 1/2 | 1 1/2 | 15,600 |
| W239 | 1 1/2 | 2 | 12,750 |
| W240 | 1 1/2 | 2 1/2 | 10,500 |
| W241 | 1 1/2 | 3 | 9,000 |
| W242 | 2 | 1 | 19,100 |
| W243 | 2 | 1 1/2 | 14,500 |
| W244 | 2 | 2 | 11,750 |
| W245 | 2 | 2 1/2 | 9,600 |
| W246 | 2 | 3 | 8,250 |
| W's - 3/8" DIA. MANDRELS | |||
| SHAPE | DIA. (in.) | THICK. (in.) | MAX RPM @ 1/2" OVERHANG |
| W223 | 1 | 2 1/2 | 24,740 |
| W224 | 1 | 3 | 21,500 |
| W231 | 1 1/4 | 1 1/2 | 30,560 |
| W232 | 1 1/4 | 2 | 28,500 |
| W238 | 1 1/2 | 1 1/2 | 25,470 |
| W239 | 1 1/2 | 2 | 24,470 |
| W240 | 1 1/2 | 2 1/2 | 21,000 |
| W241 | 1 1/2 | 3 | 18,000 |
| W242 | 2 | 1 | 19,100 |
| W243 | 2 | 1 1/2 | 19,100 |
| W244 | 2 | 2 | 19,100 |
| W245 | 2 | 2 1/2 | 19,100 |
| W246 | 2 | 3 | 16,500 |