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Thumbnail Filmstrip of Ridgid 52775 M21 High Speed Steel Reg Hole Saw Images
Outperform and outlast traditional standard pitch models. Bi-metal construction
with teeth made from specially hardened type M3 high speed steel. The varying
teeth height and gullet sizes result in much faster cutting and longer life. For
wood; mild, tool and stainless steels; cast iron; brass and aluminum. 51 sizes
from 9⁄16” (14mm) to 6” (152mm).
• Depth of cut: 11⁄8” (28 mm).
• Use RIDGID Thread Cutting Oil on all metal except cast iron.
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