Hole saw M.K. Morse Advanced Bi‑Metal 59 mm (2‑5/16") — bi‑metal construction, for wood and metal

The M.K. Morse Advanced Bi‑Metal hole saw 59 mm (2‑5/16") is a bi‑metal cutting tool designed for creating clean circular openings in wood, metal and thin alloy sheets. Its construction pairs a high‑speed steel cutting edge with a flexible alloy backing, offering a balance of cutting performance and resistance to heat and wear. The hole saw is compatible with common handheld drills and drill presses and is intended for use in plumbing, HVAC, electrical and carpentry applications where precise round holes are required.

Advantages

The bi‑metal design combines a hard HSS tooth edge for fast cutting with a tougher backing that resists fatigue and bending, extending tool life compared with single‑material saws. The 59 mm diameter provides a standardized opening size for pipe, conduit and fixture installations. The saw’s construction improves heat dissipation during prolonged cutting, reducing risk of tooth damage when used with appropriate feed rates and lubrication. Its compatibility with both handheld drills and drill presses makes it versatile for on‑site and workshop use.

Suitable for

• Cutting circular holes in wood panels and boards
• Creating openings in thin steel and non‑ferrous metal sheets
• Installing plumbing pipe, electrical conduit and HVAC fittings
• Carpentry tasks requiring clean, repeatable round holes

Key specifications

• Diameter: 59 mm (2‑5/16")
• Material: bi‑metal (high‑speed steel cutting edge with alloy backing)
• Cutting application: wood, ferrous and non‑ferrous thin metals
• Compatible drives: standard drill chucks and drill presses
• Typical use: through‑cutting and holemaking in paneling and sheet materials

How to use

Secure the hole saw to an appropriate arbor or pilot drill suited to your drill chuck. Mark the center point of the hole and, if possible, clamp the workpiece to prevent movement. Start drilling at low speed to establish the pilot hole and then increase speed and apply steady, even pressure. For metal cutting, use cutting fluid or a light lubricant to reduce heat buildup and improve cutting life. Clear chips periodically to avoid clogging and overheating. After cutting, deburr the hole edges as needed for a clean finish.

Usage recommendations

Use the hole saw within recommended speeds for the material being cut and ensure the arbor and pilot bit are correctly sized and tightened. For extended life when cutting metals, employ cutting lubricant and avoid excessive feed pressure that can overheat the teeth. When working with thin sheets, support the workpiece to reduce deformation and improve hole quality.