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Specialist® Depressed Center Grinding Wheels
Type 27 
Type 27 Spin-On 
Type 28 
Type 28 Spin-On Use on Angle Grinders 
For Grinding ONLY |
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Related Files:
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GRINDING WHEELS IMPROPERLY USED ARE DANGEROUS. Always refer to A.N.S.I. B7-1, "Safety Requirements for the Use, Care and Protection of Abrasive Wheels."
Aluminum
| Type 27 - A24ALU - Load Resistant | |||||
|---|---|---|---|---|---|
| Ideal for grinding on aluminum and nonferrous materials. | |||||
| Part # | Diameter | Thickness | Arbor | Max RPM | Box Qty. |
| (in.) | (in.) | (in.) | (RPMs) | (each) | |
| A0403 | 4" | 1/4" | 5/8" | 15,000 | 25 |
| A1203 | 4-1/2" | 1/4" | 7/8" | 13,300 | 25 |
| A1203H | 4-1/2" | 1/4" | 5/8"-11 | 13,300 | 10 |
| A2220 | 5" | 1/4" | 7/8" | 12,000 | 25 |
| A3237 | 6" | 1/4" | 7/8" | 10,000 | 25 |
| A3237H | 6" | 1/4" | 5/8"-11 | 10,000 | 10 |
| A5237 | 7" | 1/4" | 7/8" | 8,600 | 25 |
| A5237H | 7" | 1/4" | 5/8"-11 | 8,600 | 10 |
Stainless Steel
| Type 27 - A30Q - Free Grind | |||||
|---|---|---|---|---|---|
| Specially formulated for stainless steels and alloy metals. Smooth, fast grinding. | |||||
| Part # | Diameter | Thickness | Arbor | Max RPM | Box Qty. |
| (in.) | (in.) | (in.) | (RPMs) | (each) | |
| A0391 | 4" | 1/4" | 5/8" | 15,000 | 25 |
| A1231 | 4-1/2" | 1/4" | 7/8" | 13,300 | 25 |
| A1231H | 4-1/2" | 1/4" | 5/8"-11 | 13,300 | 10 |
| A2231 | 5" | 1/4" | 7/8" | 12,000 | 25 |
| A2231H | 5" | 1/4" | 5/8"-11 | 12,000 | 10 |
| A3331 | 6" | 1/4" | 7/8" | 10,000 | 25 |
| A3331H | 6" | 1/4" | 5/8"-11 | 10,000 | 10 |
| A5331 | 7" | 1/4" | 7/8" | 8,600 | 25 |
| A5331H | 7" | 1/4" | 5/8"-11 | 8,600 | 10 |
Iron
| Type 27 - CA24R - Foundry | |||||
|---|---|---|---|---|---|
| Castings, malleable and cast iron. | |||||
| Part # | Diameter | Thickness | Arbor | Max RPM | Box Qty. |
| (in.) | (in.) | (in.) | (RPMs) | (each) | |
| A5435 | 7" | 1/4" | 7/8" | 8,600 | 25 |
| A5435H | 7" | 1/4" | 5/8"-11 | 8,600 | 10 |
| A8435 | 9" | 1/4" | 7/8" | 6,800 | 25 |
| A8435H | 9" | 1/4" | 5/8"-11 | 6,800 | 10 |