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The H.S.S. Concave Radius Cutter End Mill is designed for machining external roundovers, convex radius edges, arc profiles, and formed radius cuts. Made from high-speed steel with a hardness range of HRC 62–65, this cutter series features an uncoated finish, right-hand cutting direction, and a Weldon shank for stable holding in milling operations.
This concave radius cutter family is suitable for use on conventional milling machines, CNC mills, Bridgeport-style mills, and general milling equipment. It can be used for machining steel, aluminum, and stainless steel, and is available in radius sizes from 3/32" to 1/4". The specification sheet lists concave cutter items 2810-0332, 2810-0018, 2810-0532, 2810-0316, and 2810-0014, with 4-flute and 6-flute options depending on size.
Key Features
- H.S.S. concave radius cutter end mill for external radius and form milling.
- Designed for machining external roundovers, convex radius edges, arc profiles, and curved forms.
- Hardness: HRC 62–65.
- Finish: Uncoated.
- Cutting direction: Right hand cut.
- Shank type: Weldon shank.
- Suitable for steel, aluminum, and stainless steel.
- Compatible with milling machines, CNC mills, Bridgeport-style mills, and general milling equipment.
- Available radius sizes: 3/32", 1/8", 5/32", 3/16", and 1/4".
- Available in 4-flute and 6-flute configurations depending on cutter size.

Item Radius Dia. (R) Cutting Dia. (D) Shank Dia. (d) Cutting Width (w) Overall Length (L) Flute 2810-0332
3/32" 3/4" 1/2" 3/8" 3" 6 2810-0018
1/8" 1" 3/4" 7/16" 3-1/2" 6 2810-0532
5/32" 1" 3/4" 9/16" 3-1/2" 6 2810-0316
3/16" 1" 3/4" 5/8" 3-1/2" 6 2810-0014 1/4" 1-1/4" 3/4" 13/16" 4" 4

