Tungsten Carbide Tipped Multi-Purpose (MPH) Hole Saws: Rapid, Versatile, and Durable
In the world of holesaws, there exists a peculiar and misunderstood champion—the Tungsten Carbide Tipped Multi-Purpose (MPH) Hole Saw. The jet-black coloured saw, known for its rapid cutting speeds and versatile applications, has earned a reputation that is both enigmatic and amusing. Often referred to as the “weird saw,” it seems to baffle and intrigue those who encounter it.
In this article, we intend to demystify the MPH Saw, shedding light on its features and benefits.
Why is it known as the “weird saw” and why does the holesaw only have a few teeth? How can it effectively function in this configuration?
The holesaw incorporates a specialized ground tip geometry that operates like a wood plane. Unlike a regular bi-metal holesaw that generates minute swarf waste, this unique tooth set design minimizes the heat produced and significantly reduces or eliminates any burning within the hole.
Similar to wood planes, the MPH holesaw ensures clean and smooth removal of waste material. When cutting laminates, it gradually eliminates the topcoat without causing damage to the surrounding area, resulting in a pristine hole.
The specially ground carbides employed in the holesaw possess a wider “kerf” (the area of material that is removed as waste), making the removal of slugs effortless.
Carbide, with a hardness level of HRC 75 on the Rockwell C scale, provides a more durable cutting edge compared to bi-metal (which has a hardness level of HRC 65). This increased toughness enables carbide to withstand the abrasive nature of various materials, granting it the unique capability to cut through a wide range of substances, including travertine and fiberboard.
Note: HRC denotes the hardness level according to the Rockwell C scale.
Exceptional Cutting Performance:
The Multi-Purpose Hole Saw delivers outstanding cutting performance and product durability. The carbide tips ensure efficient cutting across different materials, providing rapid and reliable stock removal with minimal effort.
Use the MPH Saw when cutting:
Wood, Veneer, and MDF
Plastics & Acrylics
Building Bricks
Fibreglass
Ceramics
Formica
Plaster
What about the cutting speeds compared to a bimetal holesaw?
Cutting speeds achieved with the MPH Hole Saws are up to five times faster, enabling users to complete cutting tasks more efficiently. This increased speed also minimizes heat build-up, reducing the risk of material damage and ensuring a smoother cutting experience.
Reaching new depths…
With a hole saw depth of 54mm (2.1/8″), the MPH Hole Saws provide the depth needed for various applications. Whether you’re working on a construction project, installing fixtures, or engaging in DIY projects, these hole saws offer the flexibility to tackle different cutting needs.
User-Friendly Design:
The MPH Hole Saws are designed with user convenience in mind. They feature a deep gullet, which allows for easy removal of the core, reducing downtime and ensuring smooth operation. The hole saws are compatible with both mains and battery-powered tools, providing flexibility in tool selection. Additionally, arbors with extended-length pilot drills are available, or you can opt to fit the longer A014CE pilot drill to the standard arbors, catering to various drilling requirements.
The Tungsten Carbide Tipped Multi-Purpose (MPH) Hole Saws are available in single saws (from 19mm – 159mm) and 3 kits:
General Purpose Kit: 19mm, 22mm, 29mm, 35mm, 44mm, 51mm, 57mm, 64mm & 68mm
General Purpose Kit: 19mm, 22mm, 29mm, 35mm, 38mm, 44mm, 51mm, 57mm, 64mm, 68mm & 76mm
Downlight Hole Saw Kit: 35mm, 40mm, 44mm, 51mm, 60mm, 65mm, 70mm, 73mm, 76mm, 83mm, 86mm & 92mm
Purchase MPH Saws online: Starrett / Amazon
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Find out more about holesaw diameters and cutting applications in our digital catalogue