Morse
Morse MHS66 4 1/8" Bi-Metal Hole Saw 105mm
Cuts stainless steel, machinable metals, wood and plastic with aggressive positive-rake teeth and a side slot for easier slug removal
- Cuts stainless steel, wood and plastic with one tool
- Aggressive positive rake teeth penetrate material faster
- Unique side slot gives better leverage for slug removal
- 105 mm diameter suits large pipe and conduit work
- Compatible with MA35PSN or MA45PSN arbors for secure fit
Morse MHS66 Bi-Metal Hole Saw
The Morse MHS66 is a 4-1/8 inch (105mm) diameter bi-metal hole saw built for general-purpose cutting. It handles stainless steel, machinable metals, wood and plastic with an aggressive positive rake tooth profile that penetrates material easier and faster. A unique side slot increases leverage access for various material thicknesses and eases slug removal. One hole saw is supplied per box.
Tradespeople needing versatile hole cutting
This saw suits electricians, plumbers and maintenance technicians who cut mixed materials on site and want faster penetration with easier slug ejection. It is not for buyers who need an arbor included in the package, as a separate arbor must be purchased. Users who require a complete kit with pilot drill and arbor should look at a different product.
Separate arbor and cutting fluid required
The MHS66 requires a separate arbor such as the MA35PSN (139052) or MA45PSN (139069) to mount on a drill. Using Morse CUTLUBE (121408) is recommended to optimise cutting performance and extend tool life. These accessories are sold separately and are not included in the box.
Highlights
- Cuts stainless steel, wood and plastic with one tool
- Aggressive positive rake teeth penetrate material faster
- Unique side slot gives better leverage for slug removal
- 105 mm diameter suits large pipe and conduit work
- Compatible with MA35PSN or MA45PSN arbors for secure fit
Specifications
| Brand | MORSE |
|---|
Questions about this item
What arbor do I need to fit the Morse MHS66 hole saw to my drill?
Use the MA35PSN (139052) or MA45PSN (139069) arbor, sold separately, to mount this 105 mm diameter hole saw.
Will the MHS66 cut the same materials as my older bi-metal hole saws?
Yes, it cuts stainless steel, machinable metals, wood and plastic, and its aggressive positive-rake tooth profile is designed to penetrate faster.
How can I check the MHS66 is cutting correctly once installed?
The saw should advance smoothly with steady pressure; the unique side slot gives leverage for easy slug removal, and applying Morse CUTLUBE (121408) helps maintain cutting speed.
Also in this aisle
People compared these
Same shelf, same checkout — eight coins and a 30-minute rate lock.



