Annular cutter HSS-Co 8 % 32,0 mm cutting depth 55,0 mm
Core drill bits in HSS-Co 8% steel quality are made with a cutting depth of 30 resp. 55 mm
Core drill bits are produced in full grinding technology, which provides a perfect surface finish with optimum chip removal
The core drill bits are used on mobile magnetic core drilling machines or on stationary pillar drilling machines
High cost and time savings because the core drill bit only drills out a ring and not the entire drill diameter
Time saving effect can be up to a factor of 10 because time-consuming preparatory work such as pre-centring or pre-drilling and re-drilling is no longer necessary
Due to the lower stress on the material, the core drills have a longer service life compared to solid drills
The ejector pin (with spring) throws out the drill core
Always use coolant and an optimum rotation speed
You can find an overview of the recommended rotation speeds on page