Mk Morse mhs88 Bi-metal Hole Saw 5-1/2 in No Arbor

Product Description

The MK MORSE mhs88 is a 5-1/2 inch (140mm) Advanced Bi-Metal Hole Saw designed for demanding cutting applications in metal, wood, and other construction materials. Built with a heavy-duty .050 inch side wall, this hole saw delivers durability and resistance to flex under load. The cutting depth reaches 1-15/16 inches, making it suitable for thick materials and deep-bore work. Manufactured in the USA, the mhs88 ships without an arbor, allowing techs and tradespeople to pair it with their existing arbor setup. It is the kind of tool specified by electricians, plumbers, and HVAC installers who need a reliable, long-service hole saw for repeated use on the job.

The mhs88 is well suited for residential and light commercial trade work where consistent, clean hole cutting is required. Typical applications include drilling through wall plates, floor joists, metal studs, and mechanical room framing to route conduit, pipe, or ductwork. Its 5-1/2 inch diameter makes it a go-to size for larger pipe penetrations and electrical rough-in work. Tradespeople who already own compatible arbors can drop this saw in and get to work without additional hardware.

Key Features

• 5-1/2 inch (140mm) cutting diameter for large-bore penetrations
• 1-15/16 inch cutting depth handles thick materials and stacked assemblies
• Heavy-duty .050 inch side wall resists flex and extends blade life
• Advanced Bi-Metal construction balances hardness and toughness
• No-arbor configuration — pairs with standard compatible arbors already in the tool bag
• Made in the USA

Compatibility

Designed as an OEM-style replacement and standard fit for use with compatible hole saw arbors suited to 5-1/2 inch bi-metal hole saws.

Installation Notes

Installation and use of this hole saw is typically performed by licensed electricians, plumbers, or HVAC technicians during rough-in phases. Ensure the arbor is fully seated and the pilot bit is secure before beginning any cut. Always disconnect power to any circuit or equipment in the work area before drilling near live components. Use appropriate PPE including eye protection and hearing protection when operating hole saws at speed.

Technical Specifications

• Cutting Diameter: 5-1/2 inches (140mm)
• Cutting Depth: 1-15/16 inches
• Side Wall Thickness: .050 inches
• Blade Type: Advanced Bi-Metal
• Arbor Included: No
• Weight: 1.35 pounds
• Country of Origin: USA
• Unit of Measure: Each
• UPC: 050326177887

Standard Information

• Brand: MK MORSE
• Manufacturer Part Number: mhs88