How to choose the right hole saws?

Hole saws refer to a kind of sawing class special circular saw for processing round holes in modern industry or engineering, which is simple and flexible to operate, easy to carry, safe, and widely used. The hole saws are installed on the ordinary electric drill, it can easily cut round holes, square holes, triangular holes, straight lines, and curves on any surface such as flat and spherical surfaces of various plates such as copper, iron, stainless steel, and plexiglass.

Here is the content list:

• What are the types of hole saws?

• How to choose the hole saws for different materials?

What are the types of hole saws?

The hole saws have different hole diameters and specifications according to different sizes of circles and are also divided into two types of standard hole saws and deep-duty hole saws according to the different depths when opening holes, which are installed on a hand drill, impact drill, rocker drill, and other power tools for use. Commonly there are two kinds of fixed diameter and variable diameter, variable diameter hole saws are commonly used in interior and exterior decoration. Fixed diameter hole saws, there are ordinary type, impact type, and water-cooled type, where the water-cooled type is commonly used for wall opening, high work efficiency, open the hole is more beautiful.

According to the material classification: bimetal hole saws, carbide hole saws, diamond hole saws. Different materials are used to cut different materials, the most commonly used is the bimetal opener, harder metal materials are recommended to use carbide, glass, carbon fiber, ceramics, and other easy-to-crack materials are recommended to use the diamond opener.

How to choose the hole saws for different materials?

1. Bimetal hole saws applicable range: wood, composite building panels, plastic, synthetic resin, aluminum, cast iron below 10mm, steel below 5mm. The above materials are generally less than 50 degrees hardness, so it is recommended to use bimetal hole saws. m42 bimetal has the characteristics of saw teeth not easy to break and high wear resistance, so when you meet the above materials, it is recommended to use bimetal hole saws.

2. Pipeline special opener scope of application: fire-fighting pipes, water pipes, shipbuilding, the main body of the steel structure, more than 10mm cast iron, and more than 5mm steel. The above materials are generally more difficult to open than ordinary materials, so when we meet the above materials, we recommend using the imported saw blade production, hole depth of 35mm or 48mm pipe special opener. In the process of use, the service life of the special pipe opener is much longer than the ordinary bimetal opener.

3. HSS opener applies to iron, iron plates, stainless steel plate, and other plates or round tubes below 5mm. High-speed steel process performance is good, strength and toughness with good, common high-speed steel hole saws are mainly 42, 43, 93, 65 grades of material made of high-speed steel is also divided into overall and welded, in general, the overall high-speed steel than the welded high-speed steel quality is more stable some. As the alloy hole saws are easy to jam the teeth when operated with a pistol drill, it is recommended to use HSS hole saws when encountering round pipes.

4. Alloy hole saws applicable range: iron, iron plate, stainless steel plate, and another flat plate below 30mm.

Danyang Daming Co., Ltd. can produce various German and American standard high-speed steel drill bits, Construction drill bits, and woodworking drill bits. The factory covers an area of 5,000 square meters, is fully equipped, and all are produced by automated milling flute and opening point equipment. Welcome new and old users to consult and cooperate with us.