GARHWAL Bi-Metal Hole Saw 200mm

If you need clean circular cut-outs through a mix of building and workshop materials, the GARHWAL bi-metal hole saw is built for that kind of job. With a 200mm cutting size, it helps you make quick progress when installing plumbing, running conduits, or cutting service holes for kitchens and bathrooms. It’s designed to be dependable in demanding use, backed by M42 bi-metal bits and bimetal treatment for long-lasting performance.

This hole saw is described as versatile across metal, wood, plasterboard and even plywood with nails, which makes it useful when you do carpentry, construction, partition work, or general fit out. The cutting depth is stated as up to 32 mm, with the ability to reach up to 50 mm on both sides, depending on setup. For drilling into real-world surfaces where you cannot always predict the material, that flexibility can be a practical advantage on site and at home 👷.

Key points

The GARHWAL hole saw is a bi-metal circular cutter aimed at handling multiple materials without needing a different tool for every surface. It’s stated to work through coloured metal, aluminium, cast iron, plasterboard, plastic and plywood, including timber with nails, which is helpful when you are tackling varied tasks across one project 🛠️.

A progressive tooth design is included to support good grip and faster chip evacuation, so you spend less time clearing debris while you cut. It also mentions a cobalt alloy for durability and accurate rotation, which matters when you want neat hole edges rather than a rough, wandering cut.

The package is also set up to get you drilling with the core essentials included, rather than requiring you to source everything separately. That makes it a straightforward choice if you are equipping a workshop, or if you regularly carry out holes for pipework and electrical or service routes.

You can also use the extension described as compatible with all drills, whether cordless or mains, including professional bench or column drills, so you are not locked into one drill type.

Tech specs

• Name: GARHWAL Bi-Metal Hole Saws - 200mm Wood Cutter, Metal Hole Saw
• Type: Bi-metal hole saw kit
• Size: 200mm
• Maximum cutting depth: 32mm
• Extended cutting depth option: up to 50mm on both sides
• Materials it’s described for: coloured metal, aluminium, cast iron, plasterboard, plastic, plywood and wood with nails
• Compatibility: suitable for cordless or corded drills, including professional column drills

What stands out

The standout feature in the product description is the use of high-quality bi-metal M42 cutting elements with HSS bimetal treatment for professional demands. According to the description, the robust build is intended to resist heavy use while maintaining consistent cutting action over time.

The tooth geometry is described as progressive, supporting optimal bite into the material while also encouraging rapid chip evacuation. In practical terms, that can help maintain drilling speed and reduce the need to stop frequently to clear the kerf.

Durability is also linked to the cobalt alloy mentioned in the description, which is said to support long service life and precise rotation. If you are cutting holes for plumbing, conduits, or service routes, precision in how the cutter runs through the workpiece makes a noticeable difference to your overall finish.

There’s also an emphasis on real job versatility rather than single-material cutting. This is the kind of hole saw you pick when a project may involve mixed substrates, such as partitions and fit-out work where you might encounter plasterboard, metal sections, timber and composite boards.

Finally, the kit includes the key drilling components listed in the description, including a pilot or centring drill and a chip ejector spring, along with an adapter with a three-sided flat rod. That means you can set up quickly and focus on the job rather than hunting for missing parts ✅.

Who it’s for

It makes sense if you regularly carry out carpentry, construction, plastering, partitioning, or home improvements where you need circular holes through mixed materials. You’ll likely appreciate it if your drilling work includes plumbing and conduit runs, plus fit-out tasks in kitchens, bathrooms and similar spaces.

It might not be the best choice if your work is strictly single-material and you already have a dedicated hole saw for that exact material. However, if your workflow involves unpredictable substrates and you want one tool that matches the described versatility, this GARHWAL bi-metal hole saw kit is a sensible fit for day-to-day needs.