When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Helical Solutions 84056 (also marked HSM-040-40187) — 4-flute square end mill, Tplus coated.
Helicaltool
Key specifications (from the packaging and official listing)
Cutter diameter (CUTØ): 0.1875\" (3/16\")
Length of cut (LOC): 0.75\" (3/4\")
Shank diameter (SHKØ): 0.25\" (1/4\")
Overall length (OAL): 2.5\" (2-1/2\")
Flutes: 4
Profile: Square end
Coating: Tplus (high-hardness coating for superior tool life and edge strength)
Design: Variable pitch (helps reduce harmonics/chatter and allows higher feed rates)
Material: Solid caroffere, CNC ground in the USA
Center cutting: Yes
Shank tolerance: h6 (for high-precision holders)
Primary applications: Stainless steels, high-temp alloys, hardened steels (up to ~65 Rc), and other ferrous materials. Suitable for light profiling, High Efficiency Milling (HEM), finishing, slotting, plunging, and roughing.
It is part of Helical’s End Mills for Stainless Steels & High Temp Alloys series (4-flute square variable pitch with Tplus coating).