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Silver cylindrical bi-metal hole saw 4.25 inch diameter with side slot and toothed edge

Morse

Morse MHS68 4.25" Bi-Metal Hole Saw

SKU CH-4KS9-REM20

Bi-metal hole saw cuts 4.25" diameter holes in metal, wood and plastic with an aggressive tooth profile and side slot for easier slug removal

  • Cuts stainless steel, wood and plastic easily
  • Aggressive positive rake teeth penetrate material faster
  • Unique side slot simplifies slug removal
  • Compatible with MA35PSN and MA45PSN arbors
  • 108 mm diameter for 4.25 inch holes

Morse MHS68 4.25" Bi-Metal Hole Saw

The Morse MHS68 is a 4.25 inch (108mm) bi-metal hole saw built for general purpose cutting. It handles stainless steel, machinable metals, wood and plastic with an aggressive positive rake tooth profile for faster penetration. A unique side slot improves leverage access and eases slug removal across various material thicknesses. One hole saw is supplied per box.

Arbor compatibility and cutting lubricant

This hole saw requires a separate arbor; compatible options include the MA35PSN (139052) or MA45PSN (139069). To optimise cutting performance and tool life, consider using Morse CUTLUBE (121408). Verify that your power tool accepts the chosen arbor shank before ordering. No arbor or lubricant is included in the box.

Upgrading from worn or single-material saws

The bi-metal construction and positive rake teeth replace dull carbon steel saws or single-material cutters that struggle with mixed jobs. The jump is worth it when you regularly switch between metal, wood and plastic and need quicker slug ejection. It is not for users who only cut one thin material occasionally or who need an integrated arbor system.

How it compares

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

Price $14.99
Cheaper than about 77% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameMORSE

Questions about this item

Does the Morse MHS68 hole saw include an arbor or must one be purchased separately?

The box contains one 4.25" bi-metal hole saw; a separate arbor is required. Compatible arbors are MA35PSN (139052) or MA45PSN (139069).

Which arbor should be chosen — the MA35PSN or the MA45PSN — for this 4.25" saw?

Both MA35PSN and MA45PSN arbors fit the Morse MHS68. Select the arbor that matches your drill chuck size and the material thickness you plan to cut.

What does the 4.25" diameter mean when the saw is mounted in a drill?

The 4.25" (108 mm) diameter is the finished hole size the saw cuts in stainless steel, machinable metals, wood or plastic when used with a suitable arbor and cutting lubricant.

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