Hole saw M.K. Morse Advanced Bi-Metal 62 mm, model MORSE-PTA-MHS385

The M.K. Morse Advanced Bi-Metal 62 mm hole saw (model MORSE-PTA-MHS385) is a bi-metal cutting tool designed for creating precise 62 mm diameter round openings in metal and other compatible materials. It combines a high-speed steel cutting edge with a flexible, durable backing to resist heat and deformation during demanding cutting tasks. The construction is intended to balance cutting performance with extended life for trade and workshop applications where repeatable, accurate holes are required.

Advantages

The bi-metal construction delivers improved wear resistance and toughness compared with single-material hole saws, allowing reliable cutting through ferrous and non-ferrous metals as well as other suitable substrates. The Advanced Bi-Metal design helps maintain tooth geometry under heat, reducing the likelihood of premature dulling. The 62 mm cutting diameter offers a standardized size for common piping, conduit, and fitting installations, while the saw's backing provides flexibility that reduces the risk of cracking under load.

Suitable for

• Cutting 62 mm diameter holes in thin to medium-thickness metal sheets
• Creating openings for pipes, conduits, and fittings
• Workshop and trade use where repeatable, accurate holes are required
• Applications involving both ferrous and non-ferrous metals

Key specifications

• Cutting diameter: 62 mm
• Material: bi-metal (high-speed steel cutting edge with flexible backing)
• Design: Advanced Bi-Metal for durability and heat resistance
• Intended use: drilling round openings in metal and compatible materials

How to use

Mount the hole saw to a suitably rated arbor and pilot drill or pilot bit as required to guide the cut. Secure the workpiece and set the drill to an appropriate speed for the material being cut; lower speeds are recommended for thicker or harder metals to reduce heat buildup. Apply steady, even pressure and allow the saw to do the cutting—avoid forcing the tool. Periodically withdraw the saw to clear swarf and allow cooling. Use cutting fluid when working with metals that require lubrication to extend tool life and improve cut quality.

Usage recommendations

For best results, match drill speed and feed to the material, use appropriate cutting fluid for metal work, and ensure arbors and pilot bits are compatible and securely fastened. Inspect the saw before use for wear or damage and replace when teeth are excessively worn to maintain hole accuracy and safety.