Mollom 5-1/2in Carbide Hole Saw (140mm) - Heavy Duty Cutting

In this review of the Mollom 5-1/2in carbide hole saw the bottom line is simple: it is a heavy-duty cutter designed for tradespeople and fabricators who need a long-lasting tool that handles hard metals. The reviewer found the unit excels at clean, burr-free holes in stainless steel and other sheet metals, and the single biggest reason to buy is its long life from the tungsten carbide teeth that stay sharp far longer than standard bi-metal saws. The review covers cutting performance, tool compatibility, and a few durability caveats.

Key Features

• 30 Tungsten Teeth: The saw includes 30 tungsten steel teeth that maintain sharpness and allow faster, smoother cutting through tough metals.
• Carbide Tipped Cutters: High-quality TCT carbide and titanium-plated cemented carbide teeth deliver superior wear resistance for extended service life.
• Size and Fit: The 5-1/2in (140mm) cutting diameter with a 10mm (3/8in) shank fits common drill presses and portable drills for versatile use.
• Slug Ejection: A spring-loaded pilot bit ejects the cut slug, saving time and preventing jam-ups during repetitive drilling.
• Multipurpose Use: Works with bench drills, magnetic drills and hand drills to cut stainless steel, mild steel, iron, copper, brass and plastics.
• Packaged Ready: Each kit includes a TCT hole saw, a titanium-plated pilot drill and a step pilot drill, each oiled and cased to prevent rust.

Who It's For

The Mollom 5-1/2in carbide hole saw is best for metalworkers, HVAC technicians, and shop users who frequently cut sheet metal, square tubing and stainless steel up to about 0.1in thickness and want a cutter that outlasts bi-metal alternatives. It is also well suited to use on drill presses and magnetic drills where stability yields neat, burr-free holes.

It is not intended for masonry, tile or stone, and homeowners who only need occasional holes in wood or soft plastics might find less expensive hole saws adequate. Users who demand ultra-rugged pilot bits should be aware some customers report the pilot bits feel less robust than the cutter body.

Pros & Cons

Pros

• Exceptional cut quality in stainless steel and other hard metals with clean, burr-free holes.
• Long service life from TCT carbide teeth, lasting significantly longer than standard bi-metal saws.
• Well packaged with two pilot bits and a plastic case, ready for workshop storage and rust protection.

Cons

• Pilot bits have mixed feedback on durability, with a few users reporting breakage under heavy side-load conditions.
• Not suitable for concrete, tile or stone, limiting use to metals, wood and plastics.

Specifications

Cutting Diameter	5-1/2in | 140mm
Shank Diameter	10mm | 3/8in
Hole Saw Depth	25mm | 1in
Teeth	30 tungsten steel teeth (TCT)
Included Bits	Titanium-plated pilot drill and step pilot drill
Materials	Tungsten carbide tipped cutters, titanium-plated cemented carbide tooth

Our Verdict

The Mollom 5-1/2in carbide hole saw is a good value for professionals and serious DIYers who cut stainless steel and other hard metals regularly. Its TCT teeth and spring-loaded pilot deliver cleaner holes and much longer wear than bi-metal alternatives, making it a smart choice when longevity and cut quality matter; buyers should handle the pilot bits with care and avoid masonry use.

Frequently Asked Questions

Can this hole saw cut stainless steel?
Yes. The TCT carbide teeth are designed to bore stainless steel up to about 0.1in thick with clean results.

What drills will it fit?
The saw uses a 10mm (3/8in) shank and is compatible with bench drills, magnetic drills and many hand drills that accept that shank size.

Is it suitable for tile or concrete?
No. This carbide hole saw is intended for metals, wood and plastics and should not be used on concrete, tiles or stone.