ITC Carbide End Mill Corner Radius 5031 - 5 Flute Variable Helix Roll Relief Harmonic Fluting Radius + Coating - Steels & Exotics - 4mm x R0.5 Blacksmith Drill while the left-hand spiral flute

while the left-hand spiral flute aids chip evacuation for smoother cutting

User-Friendly Right-Hand Metric Fine Design: Designed for straightforward use with standard right-hand threads

and improves chip flow for longer tool life

Its stub length and rigid straight shank improve stability in through‑hole reaming

is an intermediate-precision HSS-E reamer designed to finish drilled holes to tight ISO H4 tolerances

ITC Carbide End Mill Corner Radius 5031 - 5 Flute Variable Helix Roll Relief Harmonic Fluting Radius + Coating - Steels & Exotics - 4mm x R0.5 Blacksmith Drill while the left-hand spiral fluteIntroducing the Carbide End Mill Corner Radius 5031, engineered for high performance machining in steels and exotic materials. This 4 mm diameter tool features a 0. 5 mm corner radius and a 5 flute design, enhanced with a variable helix, roll relief, harmonic fluting, and a specialized coating. These elements work together to promote efficient chip evacuation, reduce cutting forces, and boost cutting stability, helping extend tool life. Designed for