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Silver bi-metal hole saw cylinder with built-in arbor and pilot drill

Morse

Morse MHSA58C 3 5/8 in bi-metal hole saw

SKU CH-WTJA-4V5WS

Cuts steel, stainless steel, nail-embedded wood and plastic with a built-in 3/8 in shank and 5/6 TPI bi-metal teeth

  • Cuts steel and stainless with bi-metal teeth
  • Built-in arbor removes the need for a separate holder
  • Variable 5/6 TPI pattern reduces vibration in wood and metal
  • 1 7/8 in cutting depth handles thick stock
  • 3/8 in shank fits standard drill chucks

Morse MHSA58C bi-metal hole saw

This 3 5/8 inch bi-metal hole saw cuts machinable metals, nail-embedded wood, plastic, stainless steel and wood. The built-in 3/8 inch shank and 5/8-18 thread mount directly into a standard drill chuck without a separate arbor. A 1/4 inch pilot drill is included to start the cut accurately. Tradespeople and DIY users gain a single tool for mixed-material jobs.

Cutting depth and impact limits

Maximum cutting depth reaches 1 7/8 inches, so material thicker than that requires a different approach. The saw carries a 5/6 variable tooth pitch suited for general-purpose cutting across the listed materials. It is not impact rated, therefore it must not be driven by an impact driver or hammer drill. Excessive feed pressure or high RPM will reduce tooth life and can bind the saw.

Upgrade from single-material saws

Users who currently switch between wood-only and metal-only hole saws can consolidate to this bi-metal model for the listed materials. The jump is worth it when a project demands clean holes in steel, stainless steel and nail-embedded wood on the same jobsite. Buyers who need larger diameters, deeper cuts or impact-rated performance should select a different saw.

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

Should I choose this 3 5/8 in saw or a different diameter?

Pick the 3 5/8 in size when that exact hole diameter is required; the built-in arbor and 3/8 in shank fit standard drill chucks.

What does the 1 7/8 in cutting depth mean on the job?

It lets you cut through material up to 1 7/8 in thick in a single pass, suitable for steel, stainless, nail-embedded wood and plastic.

How does the 5/8 in -18 thread affect compatibility?

The 5/8 in -18 thread is the arbor mounting standard; it accepts the included pilot drill and secures the saw to the built-in arbor.

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