LAIWEI carbide hole saw 75 mm

A 75 mm carbide cutting diameter gives this LAIWEI hole saw a clear role: making larger round openings in metal, including stainless steel. The listing presents it as an alternative to a conventional bi-metal hole saw and claims faster, cleaner cutting and a longer service life, those performance claims aren’t backed by further details here.

The stated cutting depth is up to 25 mm, which is the main practical boundary to keep in mind.

Where it shines

This cutter is aimed at jobs where a standard drill bit would leave too small an opening. Picture marking a larger hole on a metal panel, then choosing a cutter sized for that opening rather than working around it with a series of smaller holes. The 75 mm diameter is the defining detail, while the carbide and tungsten-alloy wording points to the cutting material described in the product name.

If you prioritise a larger opening and the listing’s carbide approach, this is the more targeted choice, if you prefer the familiar bi-metal format, that remains the comparison the seller itself raises. With what the listing says, the claimed speed, finish and lifespan are selling points rather than measured guarantees, so they shouldn’t be treated as a promise for every material or job.

It suits you if the required hole is 75 mm across and the material can be cut within the stated depth. It is not worth it if your work needs a deeper cut: the listed maximum is 25 mm, and a larger diameter won’t make up for that limit.

Quick overview

The product is described as a carbide hole saw for stainless steel and metal, with a 75 mm cutting diameter and a maximum cutting depth of 25 mm. The name also specifies tungsten alloy. No details are provided about the shank, arbor, drill compatibility or included accessories, so the information here isn’t enough to confirm how it will fit your particular setup.

That gap matters before purchase. Check the cutter’s mounting requirements against your tool and the job, rather than assuming that every drill or hole-saw fitting will work. For a one-off opening, also consider whether this diameter and cutting depth match the piece you need to cut, a smaller cutter or a different hole-making approach may suit work that calls for a narrower opening or greater depth.

Best use cases

The most straightforward use is cutting a 75 mm opening in metal where the material thickness is within the stated 25 mm maximum. It may suit a workshop task or a repair where a cleanly sized round opening matters more than the flexibility of buying a smaller, general-purpose bit. The listing specifically names stainless steel, but gives no further guidance about material thickness, cutting technique or suitable drill settings.

For that reason, treat the advertised performance advantage over bi-metal cutters as a reason to compare options, not as a substitute for matching the cutter to the material and tool. If your priority is a known fit or guidance for a particular setup, the missing compatibility information may make a better-documented alternative easier to choose.

Final take

Choose this LAIWEI cutter when you need a 75 mm hole in metal, the cut is no deeper than 25 mm, and its mounting arrangement suits your equipment. The size and stated depth make the intended job fairly specific. If you need a deeper cut, don’t know whether it will fit your drill, or want evidence behind the faster, cleaner, longer-lasting claims, look for an option with the details your job requires.