WALTER

When selecting a WALTER turning insert such as the WNMG542-MM5 WSM20S, consider the insert shape (trigon, W), size (e.g., 542 or 100608), chipbreaker geometry (MM5 for medium machining), and grade (WSM20S, a CVD-coated carbide for steel and stainless steel). The insert's inscribed circle diameter, thickness, and nose radius affect cutting forces and surface finish. Also verify the toolholder compatibility, as the insert's clearance angle and mounting style must match the holder's pocket. For the WNMG542-MM5 WSM20S, the MPN 7251999 provides a direct reference for ordering.

The WALTER GX24-3E400N04-UA4 WKP33S is a parting and grooving insert designed for high-feed operations. Its key features include a width of 3 mm (3E400), a specific geometry (UA4) for chip control, and a grade (WKP33S) optimized for steel and stainless steel. Unlike standard grooving inserts, this model has a reinforced cutting edge and a chipformer that reduces cutting forces and improves chip evacuation during deep grooving or cutoff. The insert is indexable, with multiple cutting edges, and is compatible with WALTER's GX series toolholders.

The WALTER CCMT060208-FK6 WKK10S is a diamond-shaped (CCMT) turning insert with a positive rake geometry and a FK6 chipbreaker for finishing operations. The grade WKK10S is a PVD-coated carbide designed for non-ferrous materials, such as aluminum alloys, copper, brass, and plastics. It is also suitable for machining hardened steels up to 48 HRC in light cuts. The insert's sharp edge and polished rake face reduce built-up edge and improve surface finish. For ferrous materials, consider grades like WSM20S or WSM33S.

Yes, the WALTER screw-machine-length drill bit (A1148-1/16IN) is designed for use in CNC lathes and screw machines. With a 1/16-inch diameter, 130° point angle, and parabolic flute geometry, it is optimized for chip evacuation in high-speed drilling of steel, stainless steel, and cast iron. The cobalt construction provides heat resistance and edge retention. However, due to its short length (screw-machine length), it is best suited for shallow hole drilling (depth-to-diameter ratio up to 3:1) and should be used with rigid toolholding to minimize deflection.

The WALTER GX16-1E200N10-RF8 and GX16-2E300R6-CF5 WSM33S are both indexable parting and grooving inserts from the GX16 series, but they differ in geometry and application. The RF8 variant has a width of 2 mm (1E200) and a radiused cutting edge for general grooving, while the CF5 variant has a width of 3 mm (2E300) and a chipformer design for higher feed rates. The WSM33S grade is a CVD-coated carbide for steel and stainless steel, offering good wear resistance. The RF8 is suited for finishing cuts, whereas the CF5 is for roughing or medium machining.

The WALTER insert designation SCMT120408-RM4 follows the ISO coding system for indexable inserts. 'S' indicates a square shape, 'C' denotes a 7° clearance angle, 'M' specifies a tolerance class (M class), and 'T' indicates a single-sided insert with a chipbreaker. '120408' refers to the insert size: 12 mm inscribed circle, 4 mm thickness, and 0.8 mm nose radius. 'RM4' is the chipbreaker geometry for medium to rough machining. The grade is not included in the designation; for the SCMT120408-RM4, it is typically paired with a grade like WSM20S or WSM33S, depending on the material.