VHM 8 x 25 x 53 Z-3 HA End mill; finish; uncoated; Long

VHM 8 x 25 x 53 Z-3 HA End mill; finish; uncoated; Long

Solid carbide (VHM) finishing end mill with an 8 mm cutting diameter (Dc) and 3 flutes (z). With a 25 mm length of cut (Lc) on a 53 mm overall length (Lt), it’s set up as a long-style tool, so in practice it’ll do its best work when your holder, stick-out, and setup are kept under control. The 8 mm shank (Ds) matches the cutter diameter, so there’s nothing unusual on the clamping side—just make sure it’s running true.

Being uncoated, it’s straightforward: you’ll typically see wear show up earlier than on coated tools if you push heat, so keep an eye on edge condition and don’t let chips re-cut. Chip evacuation is generally manageable with a Z-3 in most pockets and side-finishing, but with the longer format you’ll notice it’s more sensitive to chatter if you get greedy on engagement. Shank type is listed as HA, and the intended milling surface is “finish,” so expect it to behave best when you’re dialing in light, stable finishing passes.

Key Features

• Tool type: end mill
• Material: VHM (solid carbide)
• Dc: 8 mm
• Ds: 8 mm
• Lc: 25 mm
• Lt: 53 mm
• Flutes (z): 3
• Shank: HA
• Coating: uncoated
• Size: Long
• Work material groups: P (steels), M (stainless steels), K (cast iron), N (non-ferrous materials)
• Surface: finish

Applications

• Finishing passes in P/M/K/N material groups where a 3-flute, 8 mm cutter fits the feature
• Profiling and wall finishing where the 25 mm flute length is needed

Recommendations

• Keep runout and stick-out tight—long tools will tell on you fast if the setup isn’t rigid
• Watch chip control and avoid re-cutting, especially with the uncoated cutting edge

Tool Parameters Explained

Dc — Cutting diameter (Diameter of the cutting part of the tool)
Ds — Shank diameter (Diameter of the shank held in the holder)
Dn — Neck diameter (Diameter of the relieved neck section)
Lc — Length of cut (Length of the cutting edges / flutes)
Lt — Total length (Overall length of the tool)
Ln — Length of neck (Length of the neck section)
z — Number of teeth (Number of flutes / cutting edges)
r — Corner radius (Radius at the tool corner)
c — Chamfer (Size of the corner chamfer)

Helix — Helix angle (Angle of the flutes on the tool)
Coating — Tool coating (Protective coating, e.g., TiN, TiAlN)
Shank — Shank type (Type of shank, e.g., HA, HB, MT)
Size — Tool size / Length type (Tool size category, e.g., short, standard, long)
Surface — Milling type / Surface finish (Application type, e.g., roughing, finishing)