Centre cutting teeth for plunging.
Eccentric relief ground. Shank similar to DIN 1835 B with shank tolerance h6. General-purpose cutting edge geometry. For use as slot drill or end mill in side lock arbors and collet chucks. High cutting performance, very competitive price. For milling keyways.
Save the regrinding costs: it is cheaper to use a mini slot drill to the limit of wear and throw it away, than to regrind it.