The DEWALT DWACM1832 is a 2-inch carbide hole saw purpose-built for metal cutting. It uses ultra-durable carbide teeth to slice through steel, stainless steel, aluminum, and other metals with speed and long life. The ejection spring pushes the metal plug out after each cut, while the raised shoulder helps prevent breakthrough damage. An optimized tooth design delivers fast drilling on tough jobs, and the hardened backing plate resists thread stripping. This hole saw is deep-cut style, meaning it can cut thicker material in a single pass.
DEWALT DWACM1832 Carbide Hole Saw Design
Unlike bi-metal hole saws, carbide-tipped teeth stay sharper much longer in metal. The optimized tooth geometry reduces friction and heat, so the saw moves through metal quickly and maintains its edge. The raised shoulder limits how deep the saw can plunge, preventing damage to the work surface when the pilot bit breaks through. The ejection spring dislodges the slug when you pull the saw out, saving time and frustration.
Recommended RPM for the 2-Inch Hole Saw
To get the best life and cutting speed from the DWACM1832, run it at a low RPM in a drill or drill press. For a 2-inch hole saw cutting steel, a speed of roughly 250-400 RPM is a good starting point. For stainless steel, reduce RPM and use cutting fluid. The goal is steady pressure and consistent contact without burning the teeth.
Application Tips for Metal Cutting
Mark the center with a center punch, and use a pilot bit that is sharp and properly aligned. Keep the cutting area lubricated with cutting oil or paste to reduce heat and extend tool life. Clear metal chips regularly with a brush or compressed air – do not use your hands. When the saw slows or stops cutting, replace it; carbide teeth can break if you keep pushing a dull tool.
Pair withDEWALT DWACM1842 2-5/8" Metal Cutting Carbide Holesaw$39.19
