Techni-Pro 758PL5142 Head width: 0.39' | Head thickness: 0.25' | Head style: OvalHigh quality ball-bearing steel63 Rockwell hardness (HRC)Surface resistance 10^8-10^9 Ohm High Precision Cutter, Small Oval Head, Full Flush, ESD Safe The 5142 is a high-precision cutter belonging to the small oval cutter family. This type of geometry provides excellent resistance, while the 5142 head dimensions allow access to small areas.The full-flush cutting edge is suitable for performing very clean cuts on small pieces of material. The 5142 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 Cut 758PL5141High Precision Cutters0.39'0.25'Ergonomic SlimOvalFlush758PL5142High Precision Cutters0.39'0.25'Ergonomic SlimOvalFull Flush758PL5340High Precision Cutters0.39'0.25'Ergonomic SlimTaperedSemi Flush758PL5341High Precision Cutters0.39'0.25'Ergonomic SlimTaperedFlush758PL5342High Precision Cutters0.39'0.25'Ergonomic SlimTaperedFull Flush758PL5541High Precision Cutters0.39'0.25'Ergonomic SlimTapered RelievedFlush758PL5161High Precision Cutters0.39'0.