Premium Materials

The premium carbon steel, YG10 alloy, 40Cr, exquisite sandblasting process, and heat treatment process give the product high hardness, long service life, and excellent resistance to corrosion, wear, and rust, thus ensuring good performance for concrete hole-opening work.

Wide Compatability

The 5 sizes of hole saws (1.18in, 1.57in, 2.56in, 3.15in, 3.94in) are able to help you open different sizes of holes. In addition, two different types of 11.81-inch shafts can be matched with different types of hammer drills, which gives this set of accessories a wider range of applications.

High Working Efficiency

The triple-edged cutting hole saws and 135° tip drill bits boast more cutting power, which can easily cut into the wall and make hole-opening more efficient. In addition, each hole saw is equipped with two chip discharge holes to remove debris generated during the drilling process, ensuring smooth drilling.

Application

This set of products is mainly used for dry working. They are especially suitable for opening holes in concrete walls, hollow brick walls, cement walls, and red brick walls when installing air conditioners, water pipes, water heaters, smoke pipes, sewer channels, etc.

Easy to Carry and Store

he package includes a toolbox that provides specific places for storing the hole saws, shafts, and drill bits, allowing you to store them and carry them to your workplace easily.

Simple Assembly

With the complete accessories and simple structure, you can easily assemble them and install them on your electric hammer.