Promega brand hole saw cutting head, small, 14 mm OD, for use with drill arbor (2810004400, not included), for smaller OD header 25 mm (1") OD
Promega brand hole saw cutting head, large, 24 mm OD, for use with drill arbor (2810004400, not included), for all larger headers 1 1/2" (40 mm) to 80 mm (3") OD
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