CNC Milling Cutter Type V 20° 0.4 mm - DNG-18362

CNC milling cutter Type V with a 20° angle and 0.4 mm tip diameter is designed for precision V-grooving, engraving and chamfering in CNC routing applications. The cutter’s compact V-shaped geometry enables accurate toolpaths for detailed profile cutting, fine edge definition and small-scale finishing. It is intended for use on materials commonly processed by CNC routers, including soft metals, plastics, composites and wood variants where a narrow 0.4 mm tip and 20° included angle are appropriate.

Advantages

The 20° V geometry provides a narrow, acute cutting profile that produces sharp grooves and crisp engraving lines while minimising material displacement. A 0.4 mm tip diameter allows for high-resolution detail work such as lettering, PCB milling traces and fine decorative elements. The compact design promotes stable machining with predictable toolpaths and repeatable results in small features, contributing to precise chamfers and consistent profile depths.

Suitable for

• V-grooving and precise chamfering on wood, plastics and non-ferrous materials
• Engraving and lettering on panels and decorative surfaces
• PCB milling for fine trace definition and isolation routing
• Detailed profile cutting and model making
• Fine finishing and edge definition in small-scale machining

Key specifications

• Tip geometry: V-shaped, 20° included angle
• Tip diameter: 0.4 mm for high-resolution detail
• Intended application: V-grooving, engraving, chamfering, fine profiling
• Suitable materials: soft metals, plastics, composites, wood and similar CNC-routable substrates
• Tool profile: compact V cutter for small feature machining

How to use

Select machining parameters that match material hardness and desired finish: use reduced depth of cut and appropriate spindle speed for the 0.4 mm tip to avoid overload. Program toolpaths with shallow passes for accurate profile control and to minimise tool deflection. Ensure proper collet gripping and runout checks before operation; maintain coolant or air blow as applicable to clear chips and reduce heat buildup. For engraving and PCB work, use higher spindle speeds with conservative feed to achieve clean lines.

Usage recommendations

For best results, start with test cuts on scrap material to fine-tune spindle speed, feed rate and depth per pass. Inspect tip condition regularly and replace the cutter when signs of wear affect edge quality. When working with brittle or thin materials, reduce engagement and use multiple light passes to prevent chipping.