Hole saw

A hole saw also known as a hole cutter, is a saw blade of annular (ring) shape, whose annular kerf creates a hole in the workpiece without having to cut up the core material. It is used in a drill. Hole saws typically have a pilot drill bit (arbor) at their center to keep the saw teeth from walking. The fact that a hole saw creates the hole without needing to cut up the core often makes it preferable to twist drills or spade drills for relatively large holes (especially those larger than 25 millimetres (1.0 inch)). The same hole can be made faster and using less power.

The depth to which a hole saw can cut is limited by the depth of its cup-like shape. Most hole saws have a fairly short aspect ratio of diameter to depth, and they are used to cut through relatively thin workpieces. However, longer aspect ratios are available for applications that warrant them.

The blade of Tuwei’s hole saw is made of M42, premium M42 High Speed Steel cutting edge. The dual-metal structure and 4 & 6 alterable teeth allow quick and stable cutting and ensure an extend service life, Fit for drilling holes of 25mm to 114mm diameter on stainless steel pipes, carbon steel pipe, and so on. Hole saw is installed on the hole cutting machine, our hole cutting machine is with speed-adjusting, the speed should be vary according to the condition of cutting different kinds of material, for example, 1inch hole saw for carbon steel pipe, the speed should be 350RPM, while for stainless steel pipe, the speed should be 175RPM.

Tuwei started making hole saw when since its founding in 2004. We buy saw blade and weld in the factory. We test our hole saw in our factory by continuously making holes on different pipes to get initial data, then we provide hole saw to some contractors for free to get further data, after receiving positive feedback, we start mass production. Over the years, we received many feedback from customers all over the world, thanks for sharing these feedback, we improve the quality and outlook accordingly.