MILWAUKEE Bi-Metal Hole Saw 3-3/4 in. | 49-56-9643T

Overview

Meet the Milwaukee Bi-Metal Hole Saw, a versatile tool designed for general purpose drilling across metal, wood, and plastic. With a 3-3/4 inch diameter and a maximum cutting depth of 1-5/8 inch, this saw fits many common tasks around home, shop, or worksite.

Durable, versatile construction

Bi-metal construction combines tough steel teeth with a flexible backing to resist snags and heat buildup, helping you work longer without dulling. The 4/5 TPI variable pitch promotes smoother starts and cleaner holes on varied materials.

Key specifications

• Diameter: 3-3/4 in
• Max cutting depth: 1-5/8 in
• Tooth style: Variable pitch (4/5 TPI)
• Thread size: 5/8-18; Arbor not included
• Pilot drill size: 1/4 in dia x 3-1/2 in L
• Arbor compatibility: Replacement arbors available (49-56-7210, 49-56-7240, 49-56-7250, 49-56-9100)
• Materials supported: Mild steel, stainless steel, nail-embedded wood, plastic, duct, pipe, tube, nonferrous metals
• Country of manufacture: United States
• Manufacturer: Milwaukee

Practical use and benefits

Designed for general purpose cutting, this Milwaukee hole saw can support tasks from ductwork openings to conduit bores. You may experience faster starts and consistent chip removal thanks to the durable edge and matched tooth geometry. While not a guarantee, these features align with reliable performance under typical project conditions.

Usage tips

• Keep the tool stable and aligned to achieve centered holes.
• Use the pilot drill to guide the saw before full cutting.
• Follow manufacturer recommendations for speed and lubrication on metal workpieces.

Rugged and ready for workshop use, the Milwaukee model ships without an arbor, making it easy to pair with your existing drive system. When matched with the right arbor (sold separately), it becomes a flexible solution for a variety of hole-saw tasks, from electrical work to plumbing adjustments.