October 22, 2026

How to choose a slitting knife: shear vs score cutting, knife types by machine, D2 vs HSS vs carbide, edge geometry and the six details to specify.

An ink doctor blade is the cheapest component on a printing press and the one that decides whether the job is sellable. It is a thin strip of hardened steel – sometimes polymer, sometimes ceramic-coated – pressed against a rotating cylinder to wipe away surplus ink and leave a film measured in microns. When it