Core bit made of high quality alloy steel 40Cr (metal construction part) and tungsten carbide YG8C
(drilling blades) with blades' hardness 88°HRc (+/-2°).
Heat treatment and surface sandblasting reduces core bit's wear and enlarges durability on inside stresses
which appear while using, and heavy-duty structure of core bit gives the possibility to divide energy
of impact while drilling in the most effective way and without loss.
The core bit has 8 optimally big drilling blades guaranteeing quick drilling.
The spiral, that carries away dust along with 2 ventilating holes, significantly enlarges drilling capacity
as a result of quick waste removal from the hole and extends core bit's working life.
Thanks to the application of universal fastening on fine-coiled thread M22x2.00mm, the core bit can be used
for different length of adapters and different types of shanks in adapters.
Suitable for general and industrial purposes when using drills and hammer drills "class 10kg" for drilling
holes in masonry, light concrete and other building materials.