Milwaukee® hole saw arbors are made from hardened carbon steel and alloy steel for greater durability. The 49-56-9100 features a 7/16 in. hex shank, which can be used with any 7/16 in. extension. The 49-56-9100 also features a drive plate which is tightened up to the hole saw to eliminate wobble between the Arbor and hole saw.
| Competitor Name | Competitor Part Number |
|---|---|
| Berkshire eSupply | PD5049569100 |
| Grainger | 3TGT4 |
| Fastenal | 0251634 |