2MRB R0.4xD4x6x50 2f (Rib)

Description

2MRB R0.4×D4×6×50 2F (Rib) micro ball nose end mill is a precision solid carbide micro milling cutter engineered for rib machining, narrow slot milling, and fine contour profiling in high-accuracy CNC machining operations. With a 0.4 mm ball radius, 6 mm cutting length, 4 mm shank, and 50 mm overall length, this tool is designed for machining deep ribs, thin walls, micro cavities, and intricate mould features where high rigidity and stability are required.
Manufactured from ultra-fine grain solid carbide, this micro ball nose cutter delivers excellent edge sharpness, wear resistance, and cutting stability when machining aluminium, brass, copper, mild steel, EN8, EN19, SS304, plastics, and other medium-soft engineering materials. The 2-flute geometry ensures smooth chip evacuation, reduced cutting forces, and vibration-free cutting, making it ideal for high-speed CNC micro-milling and finishing.
The Rib-type design allows efficient machining of narrow grooves, deep ribs, electrode cavities, and fine slot profiles, commonly required in die and mould machining, EDM electrode milling, electronics parts, medical components, and precision tooling. The D4 shank ensures secure clamping in tool holders, minimizing run-out and delivering accurate tool positioning for superior surface finish and dimensional accuracy.
This tool is widely used by CNC cutting tools manufacturers, industrial cutting tools suppliers, and precision machining workshops for micro-feature machining, rib milling, and fine detail work. It provides consistent cutting performance, reduced tool breakage, and long tool life, even under continuous high-speed operation.
The 2MRB R0.4 micro ball nose end mill is an excellent choice for manufacturers who demand precision carbide tools, micro end mills, and high-accuracy CNC cutting solutions for mould making, engraving, and micro-component production.