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Cylindrical bi-metal hole saw, 1-5/16 inch diameter, silver metal teeth on dark body

Morse

Morse MHS21 1-5/16" Bi-Metal Hole Saw

SKU CH-HY3F-W28DQ

1-5/16" bi-metal hole saw cuts stainless steel, machinable metals, wood and plastic with an aggressive positive-rake tooth profile and side slot for easier slug removal

  • Cuts stainless steel, wood and plastic with one tool
  • Positive rake tooth profile penetrates material faster and easier
  • Side slot improves leverage for simpler slug removal
  • Compatible with Morse M35, MA35PSN and MA45PSN arbors
  • 33 mm diameter suits 1-5/16 inch hole requirements

Morse MHS21 1-5/16" Bi-Metal Hole Saw

The Morse MHS21 is a 33mm diameter bi-metal hole saw built for general purpose cutting across stainless steel, machinable metals, wood and plastic. Its aggressive positive rake tooth profile is designed to penetrate material easier and faster. This accessory suits tradespeople and DIY users who need clean holes in mixed materials. It is not for buyers who need an included arbor or a multi-piece kit.

Thermals noise and power draw

As a non-powered cutting accessory, the MHS21 generates no electrical noise, draws no power and has no thermal characteristics of its own. Heat and vibration depend entirely on the drill motor, feed pressure and workpiece material. Using Morse CUTLUBE (121408) can reduce friction and heat buildup during extended cutting. Operators should manage speed and lubrication to suit the specific material.

Arbor compatibility

The saw requires a separate Morse arbor such as the M35 (139045), MA35PSN (139052) or MA45PSN (139069) to operate. The unique side slot design increases leverage access for various material thicknesses and eases slug removal. One hole saw is supplied per box without an arbor. Buyers who do not already own a compatible Morse arbor must purchase one separately.

How it compares

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

Price $5.99
Cheaper than about 93% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameMORSE

Questions about this item

How do I install the Morse MHS21 hole saw and what step do people get wrong?

Attach the hole saw to a compatible Morse arbor such as the M35 (139045), MA35PSN (139052) or MA45PSN (139069); the common mistake is trying to use the saw without an arbor.

What maintenance or replacement will the Morse MHS21 need later?

The bi‑metal teeth will dull over time; replace the hole saw when cutting speed drops or the teeth show visible wear.

What limit shows up first under sustained use of the Morse MHS21?

Heat buildup in the teeth and slug binding in the side slot are the first limits; using Morse CUTLUBE (121408) helps delay both.

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