The hole saw alloy teeth are made of high-strength tungsten-cobalt alloy and have a sharper shape design. Hole saws have better hole opening efficiency.

The surface of the carbid hole saw is smooth: the waste is easier to remove when opening, and the operation is more stable and the opening effect is better.

It can be used to open self leveling concrete, hollow brick, cement wall, concrete wall, red brick etc, when installing air conditioners, water pipes, water heaters, fume pipes, sewers, etc.

The concrete drill bit adopts a cross type, which is more stable and not easy to slip when drilling, and the high quality masonry drill bit is applicable to brick walls, cement boards and so on.

The core drill arbor of the hole saw is designed with SDS MAX, which is perfectly matched with the five-hole electric impact drills. The rod length of concrete hole saw shank is 9-1/4" which can meet the drilling requirements of most wall thicknesses.

 A spiral flute design removes dust faster, keeping the carbide teeth cooler for ultimate strength and durability. Optimized for maximum performance in corded and cordless SDS-Max rotary hammers.

DRILLING DIAMETER :102mm / 4 inch

MATERIAL:Steel , Alloy and Steel

ROD LENGTH :  9-1/4"  SDS MAX Rod

DRILLING DEPTH:2" (50mm) drilling depth

OVERALL LENGTH: 12"

FOR Dry / Wet Granite Marble Masonry Concrete Stone Brick and Block

NOTE:Use with water will make it easier to drilling.

Content:

1x SDS Max 4" Core Drill