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0.1250" (1/8") x .475" LOC 4-Flute Square End HSS End Mill, 1/4" Shank | M4-150
0.1250" (1/8") x .475" LOC 4-Flute Square End HSS End Mill, 1/4" Shank | M4-150
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| 50 + | 10% off |
| 100 + | 15% off |
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This 1/8" 4-flute high-speed steel end mill features a square end, right-hand spiral geometry, and a 1/4" shank. The 0.475" length of cut provides useful reach for side milling, profiling, finishing, and general milling work.
This is a non-center-cutting end mill, so it is intended for side cutting, profiling, slotting from an existing opening, and finishing passes rather than straight plunge cutting. The 4-flute design provides good tool stability and surface finish in suitable materials.
High-speed steel is a practical choice for general-purpose milling in softer metals, plastics, and light-duty shop applications. For steel or harder materials, use conservative speeds, feeds, shallow cuts, and a rigid setup.
- Tool type: HSS square end mill
- Cutting diameter: 1/8" / 0.125"
- Flutes: 4
- End style: Square end
- Material: High Speed Steel / HSS
- Center cutting: No / non-center cutting
- Helix angle: 30°
- Length of cut: 0.475"
- Shank diameter: 1/4" / 0.250"
- Overall length: 1.40"
- Cutting direction: Right hand
- Flute direction: Right hand / up cut
Typical Applications
- General-purpose milling
- Side milling and profiling
- Finishing passes
- Slotting from an existing opening
- Soft metals, plastics, and light-duty shop work
Benefits
- High-speed steel construction is a practical choice for general-purpose milling and shop use.
- 4-flute geometry helps improve surface finish and tool stability in suitable applications.
- Square-end design is useful for flat-bottom profiles, slots, and finishing work.
- 0.475" LOC provides useful reach for side-cutting and profiling applications.
- 1/4" shank fits common 1/4" collets and toolholders.
- Non-center-cutting design is appropriate for side milling and finishing, but should not be used for straight plunge cuts.
Specifications
| Tool Type | Square End Mill |
| Cutting Diameter | 1/8" / 0.125" |
| Length of Cut (LOC) | 0.475" |
| Overall Length | 1.40" |
| Shank Diameter | 1/4" / 0.250" |
| Number of Flutes | 4 |
| End Style | Square End |
| Material | High Speed Steel / HSS |
| Finish / Coating | Uncoated / Bright |
| Helix Angle | 30° |
| Center Cutting | No / Non-Center Cutting |
| Cutting Direction | Right Hand |
| Flute Direction | Right Hand / Up Cut |
| Primary Application | Side milling, profiling, finishing, soft metals, plastics, and general-purpose light milling |
| Plunge Cutting | No — this is a non-center-cutting end mill |
| Steel / Ferrous Use | Light cuts only with proper speeds, feeds, shallow depth of cut, and a rigid setup |
Use our end mill feed and speed calculator as a starting point for setting up your cut.
Former SKU / item number: M187
Returns
Returns
Returns are accepted within 30 days of delivery for unused items in resalable condition. Original shipping charges are non-refundable unless the return is due to our error. Late, bulk, used, clearance, or special-order returns may be limited or subject to approval. See our Refund Policy for full details.
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