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7/8" Bi-Metal Hole Saw (Qty. 1)
The IRWIN IR-373078BX 7/8"" Bi-Metal Hole Saw is crafted from the highest quality bi-metal which means that the teeth of the saw are attached to a carbon steel body by a process called electron beam welding resulting in a tool composed of two types of metal welded edge-to-edge. Engineered and manufactured for exceptional sharpness and durability, IRWIN Tool saws will cut much more than wood. These saws furrow through aluminum, copper, iron, stainless steel and zinc. The tooth "pitch" that varies from 4 to 6 teeth per inch which reduces harmonics and improves performance. In addition the varied depth of the gullets between the blade's teeth provides more efficient chip clearance which in turn results in greater cutting speed.
|Recommended Drill Speeds|
|Hole Size||RPM Mild Steel||RPM Stainless Steel|
|3/4" - 1" (20 mm - 25 mm)||1300 - 1750||325 - 450|