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Morse MHS72 4.5 inch bi-metal hole saw, silver cylindrical body with side slot

Morse

Morse MHS72 4.5" Bi-Metal Hole Saw pneumatic accessory

SKU CH-P0MM-B5CYF

4.5" bi-metal hole saw cuts stainless steel, machinable metals, wood and plastic with aggressive positive rake teeth and a side slot for easier slug removal

  • Cuts stainless steel, wood and plastic with bi-metal construction
  • Aggressive positive rake teeth penetrate material faster and easier
  • Unique side slot improves leverage for simpler slug removal
  • 114 mm diameter suits 4.5 inch hole-cutting tasks
  • Compatible with MA35PSN or MA45PSN arbors for secure mounting

Morse MHS72 4.5" Bi-Metal Hole Saw

The Morse MHS72 is a 4.5 inch (114 mm) diameter bi-metal hole saw built for general purpose cutting. It handles stainless steel, machinable metals, wood and plastic in a single tool. An aggressive positive rake tooth profile helps the saw penetrate material easier and faster. A separate arbor such as the MA35PSN or MA45PSN is required for operation.

Thermals noise and power draw

The unique side slot design increases leverage access for various material thicknesses and eases slug removal during use. This feature reduces binding and helps maintain steady cutting progress without excessive force. Applying Morse CUTLUBE can further optimise performance and extend the life of the cutting teeth. One hole saw is supplied per box.

Bundled accessories and software

No arbor or lubricant is included with the hole saw itself. Buyers must source a compatible MA35PSN or MA45PSN arbor separately to mount the tool. Morse CUTLUBE is also sold separately for those who want to optimise cutting performance. The product is restricted from sale in certain states as noted by the supplier.

How it compares

Measured against everything we stock in Bits, Hole Saws & Accessory Kits, at today’s prices. Recalculated every night.

Price $17.99
Cheaper than about 68% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameMORSE

Questions about this item

How do I install the MHS72 4.5" bi-metal hole saw, and what step is often missed?

A separate arbor is required — use the MA35PSN (139052) or MA45PSN (139069). The step people miss is fitting the correct arbor before mounting the saw on the pneumatic tool.

What maintenance or replacement will the MHS72 hole saw need later?

The bi-metal teeth will dull with use; replace the saw when cutting speed drops. For longer life, apply Morse CUTLUBE (121408) during operation and clear the slug via the side slot after each hole.

What limit appears first on the MHS72 during sustained cutting?

Heat buildup in the teeth is the first limit; aggressive positive-rake teeth cut fast but generate heat. Using Morse CUTLUBE (121408) and pausing to let the saw cool extends continuous run time.

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