Techni-Pro 758PL5542 Head width: 0.39' | Head thickness: 0.25' | Head style: Tapered RelievedHigh quality ball-bearing steel63 Rockwell hardness (HRC)Perfect symmetry High Precision Cutter, Small Tapered Relieved Head, Full Flush, ESD Safe The 5542 is a high-precision cutter belonging to the small tapered and relieved cutter family. This type of geometry and head dimensions offer the best advantage for accessing small areas.The full-flush cutting edge is suitable for performing very clean cuts on small pieces of material. The 5542 is equipped with an ESD Ergo-tek handle which allows an excellent grip and is suitable for environments and components susceptible to electrostatic discharges. The blades are hardened to 67HRC hardness. Infinity Elite Series Comparison Table ModelTypeHead Width Head Thickness Handle Type Head Style Cut758PL5247High Precision Cutters0.39'0.25'Ergonomic SlimObliqueFlush758PL5542High Precision Cutters0.39'0.25'Ergonomic SlimTapered RelievedFull Flush758PL5140High Precision Cutters0.39'0.