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Morse MHSG66 4-1/8 inch carbide grit hole saw with gulleted edge and side slot

Morse

Morse MHSG66 4-1/8" carbide grit hole saw

SKU CH-BE24-KEW9B

A 105 mm carbide-grit hole saw for hard or abrasive materials such as cinder block, cast iron, ceramics, fiberglass and composites.

  • Cuts hard and abrasive materials with carbide grit edge
  • Gulleted edge clears chips while cutting for smoother progress
  • Side slot improves leverage and speeds slug removal
  • 105 mm diameter suits larger pipe and conduit work
  • Requires separate Morse arbor 139830 or 139847

Morse MHSG66 carbide grit hole saw

This 4-1/8 inch Morse MHSG66 hole saw features a carbide grit edge built for hard or abrasive materials. It cuts cinder block, cast iron, unglazed ceramics, fiberglass and composites. A gulleted cutting edge clears chips while cutting. A separate arbor must be purchased.

105 mm diameter and arbor compatibility

The single specification that decides fit is the 105 millimetre (4-1/8 inch) diameter. The saw requires a Morse MA35PSNCT (139830) or MA45PSNCT (139847) arbor, sold separately. Without the correct arbor the saw cannot be mounted on a drill.

Sustained cutting in abrasive materials

Carbide grit resists wear when cutting abrasive composites and masonry over long periods. The gulleted edge continuously ejects debris to reduce binding and heat build-up. The side slot provides leverage for slug removal through various material thicknesses. One saw per box.

How it compares

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

Price $41.99
Pricier than about 62% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameMORSE

Questions about this item

How deep can the 4-1/8" carbide grit hole saw cut in a single pass?

The saw cuts through the full material thickness in one pass; its gulleted edge clears chips continuously so the depth is limited only by the workpiece, not the tool.

What arbor fits the MHSG66 and what shank sizes are available?

Use Morse arbor 139830 for a 35 mm shank or 139847 for a 45 mm shank; both lock the 105 mm saw securely for handheld or press drilling.

Will the 105 mm saw fit my drill press without an adapter?

The saw itself has no shank; you must mount it on either the 139830 or 139847 arbor, which then fits standard drill-press chucks.

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