Reamers targeted at middle ground

Reamers targeted at middle ground

A range of sub-micron solid carbide reamers aimed at the gap in the market between reamers designed for high-volume piece part production and those used for one-off type applications, the solid carbide reamers form part of the WNT Mastertool range. Two designations are available that cover a range of machining applications. Type UNI-CNC features a cutting edge geometry designed for use on most common materials, while type VA-CNC is specified for machining stainless and hard materials. As such, the latter is provided with a TiAlN coating as standard. A standard feature that enhances the quality of the hole produced and the tool life expectancy of the range is the through-coolant facility. This can be specified with the coolant delivered directly through the reamer for blind holes or with coolant exiting directly into the flutes for through-hole applications. Finished hole quality is also enhanced thanks to the extensive application know-how applied during the design of the range, which resulted in the reamers having a highly irregular pitch to the cutting edges. This has the effect of improving hole geometry and the surface finish of the reamed hole. Typically, roundness error will be between 1 and 2 micron. Of course, the quality of the hole produced is dependent on the external conditions applied to the reamer, such as toolholding, coolant quality, cutting data and machine stability. It is here that WNT (UK) scores a significant advantage, courtesy of the members of its technical sales team based in the field and at WNT (UK)’s sales office in Sheffield. This technical knowledge is available to all customers, irrespective of size and turnover. Depending on the type specified, the WNT solid carbide reamers are available from 3.70 mm to 20.20 mm diameter and all are supplied with a standard cylindrical shank that can be gripped in most standard spindle nose tools, such as shrink-fit, hydraulic expansion chucks or similar high-precision toolholding systems.