Arbors for Bi-metal hole saw
| order No. | Shank size | Thread size | Chunk size | Fits size |
| 21610010 | 1/4 Round | 1/2--20 UNF | 1/4 | 9/16--1-3/16 |
| 21620010 | 3/8 Hex | 1/2--20 UNF | 3/8 | 9/16--1-3/16 |
| 21620050 | 7/16 Hex | 1/2--20 UNF | 1/2 | 9/16--1-3/16 |
| 21620030 | 7/16 Hex | 5/8--18 UNF | 1/2 | 1-1/4--8-17/64 |
| 21620040 | 7/16 Hex | 5/8--18 UNF | 1/2 | 1-1/4--8-17/64 |
| 21620050 | 3/8 Hex | 5/8--18 UNF | 3/8 | 1-1/4--8-17/64 |
| 21620060 | 7/16 Hex | 5/8--18 UNF | 1/2 | 1-1/4--8-17/64 |
| 21620070 | 5/8 Hex | 5/8--18 UNF | 3/4 | 1-1/4--8-17/64 |
| 21630010 |
SDS Plus shank |
1/2--20 UNF | SDS | 9/16--1-3/16 |
| 21630020 | SDS Plus shank | 5/8--18 UNF | SDS | 1-1/4--8-17/64 |
| 21630030 | SDS Plus shank | 5/8--18 UNF | SDS | 1-1/4--7-7/8 |
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| order No. | Description |
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| 21640010 | Adapter arbors with 1/2-20 threads to hole saws 5/8-18 threads |
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| 21640020 | 5-1/2” (140mm) Extension for shank of 7/16” (or 3/8”) arbors |
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| 21640030 | 10” (250mm) Extension for shank of 7/16” (or 3/8”) arbors |
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| 21640040 | 12” (300mm) Extension for shank of 7/16” (or 3/8”) arbors |
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| 21640050 | 18” (450mm) Extension for shank of 7/16” (or 3/8”) arbors |
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| 21640060 | Ejector spring, fit all 1/4” pilot drills |
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| 21640070 | 1/4” x 2-7/8” (73x63.5mm) pilot drills |
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| 21640080 | 1/4” x 4” (6.35x73mm) pilot drills |
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| 21640090 | Hex key wrench |
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| 21640100 | 7/16 Hex | 1/2--20 UNF |
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| 21640110 | 7/16 Hex | 5/8--18 UNF |
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