Fits all Irwin Hole Saw Mandrels
![Irwin Hanson® Drill Bit Gauges, #IR-12092 (5/Pkg) Irwin Hanson® Drill Bit Gauges, #IR-12092 (5/Pkg)](https://cdn11.bigcommerce.com/s-gdy1ehz/images/stencil/500x659/products/237707/341745/585-12092__42115.1593130881.jpg?c=2)
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Fits all Irwin Hole Saw Mandrels