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Morse 4 inch carbide grit hole saw with gulleted edge and side slot

Morse

Morse MHSG64 4" 102mm Carbide Grit Hole Saw

SKU CH-CCKY-DJVTS

A 102 mm carbide grit hole saw for hard or abrasive materials such as cast iron, fibre glass and unglazed ceramics, with gulleted edge and side slot for chip clearance and slug removal

  • Cuts hard abrasive materials with carbide grit edge
  • 4 inch 102mm diameter suits large hole requirements
  • Gulleted edge clears chips during cutting operation
  • Side slot improves leverage for easier slug removal
  • Compatible with Morse MA35PSNCT or MA45PSNCT arbors

Morse MHSG64 4" Carbide Grit Hole Saw

The Morse MHSG64 is a 4 inch (102mm) diameter carbide grit hole saw built for cutting hard or abrasive materials such as cinder block, cast iron, unglazed ceramics, fiberglass and composites. It is intended for trade professionals and serious DIYers who need clean holes in these tough substrates.

Gulleted edge and side slot for chip clearance

The gulleted cutting edge clears chips while cutting, and the unique side slot increases leverage access across various material thicknesses to ease slug removal. These features reduce binding and speed up the job on abrasive surfaces. One hole saw is supplied per box.

Arbor required — not included

A separate Morse arbor must be purchased; compatible models are MA35PSNCT (139830) or MA45PSNCT (139847). The saw will not function without one of these arbors, so buyers without an existing Morse arbor need to order one.

Not for wood, metal sheet or thin plastic

The carbide grit design is optimised for hard, abrasive materials and will not cut efficiently in wood, thin sheet metal or soft plastics. Users needing fast cuts in those materials should select a bi-metal or high-speed steel hole saw instead.

How it compares

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

Price $37.99
Pricier than about 60% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameMORSE

Questions about this item

Will the carbide grit edge on the MHSG64 need replacing, or can it be resharpened?

The carbide grit edge is not resharpenable; once the abrasive coating wears down from cutting cinder block, cast iron or fiberglass, the hole saw must be replaced.

What stops the MHSG64 from cutting deeper during prolonged use in abrasive material?

The gulleted cutting edge clears chips, but the 102 mm diameter and carbide grit generate heat that limits continuous cutting before the edge dulls.

How hot does the MHSG64 get when run all day on cast iron, and does it need coolant?

The carbide grit runs hot in cast iron; use cutting oil or water coolant to manage temperature and extend the 102 mm saw's working life.

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