– The pin (with spring) throws out the drill core.
– The core drill is produced in full-cut technology, because it receives a perfect surface finish with optimum chip flow.
– Core drills are ideal for optimum drilling results in significantly less time, combined with a significant cost reduction, in direct comparison to standard drill bits.
– PROJAHN core drills are usable on mobile magnetic core drilling machines or on stationary pillar drilling machines.
– By reduced material stress, a longer service life of the drill core results in comparison to standard drill bits.
– 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.
– Available with Weldon Shank 19 mm (3/4“) and QuickIN-Shank.
– PROJAHN core drills are made from HSS steel and HSS-Co 8% steel quality with a cutting deepth of 30, 35 and 55 mm.
Inhalt:
Ø 12 – 16 – 18 – 20 – 22 mm, including guide pin
Ø 12 – 14 – 16 – 18 – 20 – 22 mm
including guide pin
