Made of high-speed steel. Fits all Irwin hole saw mandrels; replacement hole saw pilot drill bit.
- For 3/8 in and 1/2 in drill chucks
- Removable pilot drill for easy replacement
- Tough, durable construction
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Catalog
https://assets.unilogcorp.com/187/ITEM/DOC/IRWIN_100000696_Catalog.pdf