GARHWAL 100mm bi metal hole saw

Key features

If you need clean, accurate holes through common building and home materials, the GARHWAL 100mm bi metal hole saw is a practical choice for repeated projects. The cutting system is designed to slice through wood, plasterboard, plastic and fine metal with less fuss, helping you get to the install stage faster. It is also built for long service life, using thermally treated carbon steel alloy and bimetal construction for strength and hardness, according to the manufacturer. ✅

A neat detail is the blade edge design for a cleaner cut without snagging or binding, which can make a difference when you are working on panels like plasterboard or when you are trying to keep edges tidy around openings. The teeth are described as ultra sharp with improved serrations for a quicker, cleaner result, particularly on softer woods and thinner boards. It also includes a spring mechanism that pushes the disc out once the hole is completed, so you are less likely to be left fishing the core out by hand. 🛠️

For everyday trade and DIY use, the geometry is said to reduce vibration compared with other hole saws, helped by variable pitch step teeth. That can feel more controlled in use, especially when drilling openings for fittings in walls, service runs and fittings locations. If your work involves conduit and cable routes, this hole saw is presented as suitable for jobs like air vent ducting and lighting cut outs, where you want consistent hole quality. 🤝

What to know

The GARHWAL bimetal hole saw is positioned for wall, conduit and practical installation work, including tasks like speaker openings, ceiling light holes and other typical service penetrations. The manufacturer describes it as being useful for plumbing installation holes, electrical conduit openings and ducting runs, along with uses such as door lock installations and antenna cable holes. It is also described as useful for cutting through materials like wood, plasterboard, plastic and thin metal where you need a single tool that covers multiple tasks. 📌

Construction details matter here. The cutter is made from thermally treated carbon steel alloy and bimetal steel, with a focus on durability and cutting performance. You also get an included axle, which can simplify setup when you are matching it with your drill and hole saw arbour system. Keep in mind that your exact performance will still depend on your drilling technique, the material thickness and whether you are using steady feed pressure.

It is a straightforward pick when you want fast cutting and better hole edge quality without excessive vibration. That combination can be helpful when you are working in tighter residential spaces like kitchens and bathrooms, or when you are preparing openings for service fixtures. If you often drill many holes over time, the long life blades approach is intended to reduce the frequency of replacements. 🔧

Tech specs

• Name: GARHWAL Bi-Metal Hole Saws - 100mm Wood Cutter, Metal Hole Saw
• Type: Bi-metal hole saw
• Size: 100mm
• Material: Thermally treated carbon steel alloy and bimetal steel
• Cutting use: Wood, plasterboard, plastic, and fine metal
• Feature: Spring mechanism to push the disc out after cutting
• Included: Axle included

Who it’s for

It makes sense if you are a plumber, electrician or installer who regularly drills holes for conduit, cable routes and wall mounted or ceiling mounted fittings. You’ll like it if your day to day work includes making openings in plasterboard panels and softer boards, plus occasional work through thin metal where one tool can cover multiple materials. It might not be a great match if you only need occasional, very large diameter cuts, or if you already have a dedicated specialised saw for one single material type.

For homeowners and DIYers, it suits projects that involve tidy openings in common internal materials, such as preparing holes for fittings in kitchens, bathrooms and utility spaces. Worth considering if you care about reducing vibration and keeping cut edges neat, especially when drilling service penetrations for plumbing, electrical trunking and similar installs. The included axle also helps streamline setup so you can focus on marking, drilling and fitting.