Sherwood: 4MM HSS-Co 5% Theaded Shank Multi Flute Long Seies End Mills Long Series Type E431T. Used for profile milling and producing open slots. Bright finish. Flute type: 30 helix. Manufactured to BS 122 : Part 4 : 1980. METRIC TOLERANCES: Diameter: up to 38.00mm. Tolerance: +0.0630, -0.0130. Diameter: Over 38.00mm. Tolerance: +0.1250, -0.0000. MPN: E2644040 EAN: 5036140275355 4MM HSS-Co 5% Theaded Shank Multi Flute Long Seies End Mills Attributes: Cutter Diameter: 4mm Cutter Diameter Tolerance: k10 Cutting Direction: Right Hand End Mill Type: End Mill Finish/Coating: Bright Flute Length: 25.5mm Flute Type: Helical Length Type: Long Material: Cobalt High Speed Steel Material Grade: M35 Number of Flutes: 4 Overall Length: 70mm Plunge Type: Non-centre Cutting Series: E431T Shank Diameter: 6mm Shank Diameter Tolerance: h6 Shank Type: Threaded Standards Met: BS 122