Bi-metal hole saw, 13-piece core drill set (with 13 mandrels, hex key and springs), 18-75mm diameter saw blade for drilling plastic, PVC, wood, fiberboard, and soft metal.

【13 HOLE SAW BLADES and 39 ACCESSORIES】13 x Bi-metal hole saw blades, 13 x mandrels, 13 x drill bits, 1 x case.

Each hole saw kit is fully matched and individually packaged, effectively preventing situations where the drill bit holder cannot be removed and other saw blades cannot be used after using one saw blade size.

【HIGH PERFORMANCE】-The hole saw adopts a heat-treated M42 bi-metal saw blade, and the cutting part is made of high-quality high-speed carbon steel.

The product has the advantages of high-temperature resistance, no deformation, and a long service life.

The diameter is 18, 20, 22, 25, 28, 30, 35, 38, 45, 50, 55, 65, 75 mm and the maximum cutting depth/thickness is 25 mm

【CUTTING DESIGN】 The saw teeth adopt an arc design, concentric precision, a uniform tooth edge, impact resistance, and anti-drop protection.

The hole saw kit adopts a non-binding, clean-edged design for easy cutting.

After drilling, the drill spring will automatically push the disc out of the saw.

【WIDE APPLICATION】Suitable for metal pipe fittings such as steel, castings, aluminum alloys, plastic sheets, galvanized pipes, fire-fighting pipes, all kinds of wood, plasterboard, etc.

Suitable for: bench drills, pillar drills, pistol drills, various hand drills, etc.

【NOTE】When using the hole saw kit for extended periods, please control the rotation speed appropriately, RPM ≤ 1000. High speeds can easily cause wear on the hole saw.

The product surface is coated with a thin layer of protective oil (anti-oxidation, anti-rust). Be careful not to stain it and check the condition of the hole saw regularly.