Milwaukee 3-1/2 in. One-Piece Carbide Cutter 49-57-8645

STAINLESS STEEL PANEL DOMINANCE

When you're facing a NEMA 4X stainless enclosure or high-gauge junction boxes, standard bi-metal hole saws are a recipe for burnt teeth and wasted billable hours. This 3-1/2 inch one-piece carbide cutter is engineered for high-volume production environments where precision and speed are non-negotiable. It maintains structural integrity under extreme heat, ensuring clean, burr-free entries for large-scale conduit runs without compromising the integrity of the substrate or the efficiency of the installation.

• / Carbide-Tipped Teeth: Delivers extended service life in abrasive stainless steel and structural hard metals compared to standard high-speed steel alternatives.
• / Integrated Stop Shoulder: Prevents over-penetration and protects internal wiring or components by limiting cutting depth to a precise 3/16-inch.
• / Spring-Loaded Pilot Bit: Facilitates rapid, automatic plug ejection to minimize downtime between successive holes on high-density panel layouts.
• / 3-Flat Shank: Eliminates bit slippage within the drill chuck, ensuring maximum torque transfer during heavy-load drilling operations.
• / One-Piece Solid Construction: Provides superior concentricity and durability, reducing vibration and chatter for perfectly round apertures.

WHAT'S IN THE BOX

(1) 3-1/2 in. One-Piece Carbide Cutter (49-57-8645), (1) Pilot Bit, (1) Ejection Spring