Core drill bit carbide tipped made of high quality alloy steel 40Cr (metal construction part) and tungsten
carbide YG8C (drilling tips) with blades' hardness 88°HRc (+/-2°).
Heat treatment and surface sandblasting reduces drill'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 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 drill's working life.
The core drill bit consists of 2 core bits (ø68mm with 6 and ø82mm with 8 optimally big blades), adapter
length 110mm, which on one side has SDS-plus end, that is being used for fasteningin in drills and hammer drills with SDS-plus or double-channel fastening, on other side it has fine-coiled thread M22x2.00mm
for fastening core bit and centring drill bit diameter ø8mm and point angle 130° and has M6 screw
for blocking the drill bit.
Suitable for general and industrial purposes when using drills and hammer drills "class 5kg" for drilling holes
in masonry, light concrete and other building materials.