Cleveland Golf
Cleveland Golf End Mill Cobalt 1/8 4 FL SGL Sq End CC
A 1/8-inch cobalt square end mill with four flutes, single-end design and 30-degree helix for finishing operations
- TypeHole, Drill, Bore & Wire Gauges
- Cobalt construction resists heat during extended cuts
- Four-flute design improves surface finish on finishing passes
- 30-degree helix angle balances chip evacuation and tool rigidity
- Bright uncoated surface suits general-purpose milling tasks
- 1/8-inch diameter with 3/8-inch shank fits standard tool holders
End Mill Cobalt 1/8 Inch 4 Flute
This single-end square end mill is made from cobalt steel for general-purpose finishing work. It suits machinists and maintenance technicians who need a bright, uncoated cutter for light production or repair tasks. The right-hand helix and centre-cutting design allow plunging and side milling in a range of ferrous and non-ferrous materials.
Practical Limits of a 30 Degree Helix
The 30-degree helix angle gives a balanced chip evacuation rate that works well for finishing passes but is not optimised for heavy roughing or high-speed aluminium machining. Bright uncoated surfaces increase friction in abrasive alloys, so tool life drops when cutting hardened steels or titanium without flood coolant. Users should match feed and speed to the material rather than pushing the geometry beyond its finishing intent.
Build Quality and Shank Implications
The 3/8-inch shank fits standard ER collets and Weldon holders, letting the cutter sit securely in most manual and CNC mill setups. A 0.000-inch corner radius means sharp corners that can chip if the workpiece has interrupted cuts or hard scale. Bright finish shows wear visibly, helping operators judge regrind timing, but it offers no lubricity benefit in dry cutting conditions.
Highlights
- Cobalt construction resists heat during extended cuts
- Four-flute design improves surface finish on finishing passes
- 30-degree helix angle balances chip evacuation and tool rigidity
- Bright uncoated surface suits general-purpose milling tasks
- 1/8-inch diameter with 3/8-inch shank fits standard tool holders
Specifications
| Brand | Cleveland |
|---|---|
| Type | Hole, Drill, Bore & Wire Gauges |
Questions about this item
Should I pick the 1/8 inch diameter or the 3/8 inch shank version for my milling setup?
The tool has a 1/8 inch milling diameter and a fixed 3/8 inch shank diameter; both dimensions belong to the same end mill, so no separate version choice exists.
What does the 30 degree helix angle mean when the cutter is in the machine?
A 30 degree helix angle gives a moderate shear action that balances chip evacuation and edge strength for general-purpose finishing in steel and other ferrous materials.
How does the bright uncoated finish affect the cutting performance?
The bright uncoated finish provides a sharp edge for clean finishing cuts but offers no heat or wear resistance, so coolant and conservative speeds are recommended for longer tool life.
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