Kjernebor 15mm HSS-Co 8% L30mm

- Core drills in HSS-Co 8% steel quality are made with a cutting depth of 30 resp. 55 mm
- The core drill is produced in full-cut technology, because it receives a perfect surface finish with optimum chip flow.
- PROJAHN core drills are usable on mobile magnetic core drilling machines or on stationary pillar drilling machines.
- Great cost and time savings because the core drill only drills one ring and not the entire drill diameter. The time saved can be up to a factor of 10, also because complex preliminary work such as B. pre-centering and pre-drilling are not necessary.
- The time saved can be up to a factor of 10, also because complex preparatory work such as B. pre-centering or pre-drilling and boring are omitted
- By reduced material stress, a longer service life of the drill core results in comparison to standard drill bits.
- The pin (with spring) throws out the drill core.
- The pin (with spring) throws out the drill core. Always use coolant and the optimal speed.
- You can find an overview of the recommended speeds on page