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

Overview

The MILWAUKEE Bi-Metal Hole Saw delivers versatile performance for general cutting tasks. With a 3-3/4 in diameter and a maximum cutting depth of 1-5/8 in, it helps you create clean, round openings across a range of materials. This tool is built for durability and steady cutting action, making it a practical choice for DIY projects and professional work alike.

What it’s designed for

• Materials: mild steel, stainless steel, nail-embedded wood, plastic, duct, pipe, and nonferrous metals
• Teeth: High Speed Steel for robust cutting performance
• Pitch: variable pitch (4/5 TPI) to help reduce heat buildup and improve cut quality

Arbor not included. To pair this hole saw with your setup, Milwaukee offers replacement arbors such as 49-56-7210, 49-56-7240, 49-56-7250, and 49-56-9100. The pilot drill size is 1/4 in. diameter by 3-1/2 in. long, with a thread size of 5/8-18, ensuring compatibility with standard installations.

Key specs at a glance

• Diameter: 3-3/4 in
• Max cutting depth: 1-5/8 in
• Teeth per inch: 4/5, variable pitch
• Tooth material: High Speed Steel
• Arbor hole: 5/8-18 (arbor not included)
• Pilot drill: 1/4 in. dia x 3-1/2 in. L
• Country of manufacture: United States
• Manufacturer: Milwaukee
• Primary application: General cutting across metal, wood, plastic, and more

Practical use and tips

When cutting through metal or nail-embedded wood, apply steady, moderate pressure and let the teeth do the work. Regularly clear chips to prevent sticking, and choose a compatible replacement arbor if your project requires a different setup. The tool’s bi-metal construction and high-speed steel teeth are designed to endure repeated use in demanding environments.

Why choose Milwaukee for hole cutting

Milwaukee’s design emphasizes power cutting and sawing with durable components. This hole saw’s rugged finish and USA-made manufacturing reflect a focus on reliability for a variety of scheduling needs, from quick jobs to longer tasks that demand consistent performance.