The bars combine a conventional steel body with a pressed carbide core. According to WNT, this offers similar performance to that found in solid carbide tools with respect to damping and torsional stiffness, but delivers a more attractive price/performance ratio, thanks to the reduced amount of carbide required.
The carbide core is embedded within the steel shaft and the coolant is able to flow around this to exit immediately behind the cutting edge. WNT vibration-damped boring bars are available in a selection of ISO insert styles, while bar diameters extend from 6 to 32 mm.