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Cylindrical 1-7/8 inch carbide grit hole saw with gulleted edge and side slot

Morse

Morse MHSG30 1-7/8" Carbide Grit Hole Saw

SKU CH-GSRZ-R8K3C

Cuts hard and abrasive materials with a 48 mm carbide grit edge and gulleted design for chip clearance

  • Cuts hard abrasive materials with carbide grit edge
  • 48 mm diameter suits common pipe and conduit sizes
  • Gulleted edge clears chips while cutting
  • Side slot gives leverage for easy slug removal
  • Compatible with Morse MA35PSNCT or MA45PSNCT arbors

Morse MHSG30 Carbide Grit Hole Saw

The Morse MHSG30 is a 1-7/8 inch (48 mm) diameter hole saw with a carbide grit edge. It is built for cutting hard or abrasive materials such as cinder block, cast iron, unglazed ceramics, fiberglass and composites. A gulleted cutting edge provides chip clearance during the cut. A unique side slot improves leverage access and eases slug removal across various material thicknesses. One hole saw is supplied per box.

Compatibility and Use Cases

This accessory suits tradespeople cutting masonry, metal or composite boards where standard bi-metal teeth wear quickly. The carbide grit edge handles abrasive surfaces that destroy conventional saws. It is not for buyers who need a complete kit with an arbor included, because a separate Morse arbor must be purchased. Users who only drill wood or thin sheet metal will find a standard bi-metal saw more economical.

Required Arbor

The single specification that decides fitment is the mandatory separate arbor. This hole saw requires a Morse MA35PSNCT (139830) or MA45PSNCT (139847) arbor, which are not included. Verify your drill chuck accepts the chosen arbor shank before ordering.

How it compares

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

Price $20.99
Cheaper than about 62% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameMORSE

Questions about this item

How much heat does the 48 mm carbide grit edge generate during extended cutting in cast iron?

The gulleted edge clears chips continuously, which reduces friction and heat build-up during long cuts in hard materials.

Which Morse arbor must I already own — MA35PSNCT or MA45PSNCT — to mount the 1-7/8" saw?

Either the MA35PSNCT (139830) or the MA45PSNCT (139847) arbor fits the saw; choose the one that matches your drill chuck size.

Will the side slot on this 48 mm saw engage the ejector pin on my older Morse arbor?

The unique side slot is designed for leverage and slug removal and works with the listed Morse arbors, including earlier MA35PSNCT and MA45PSNCT models.

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