Description
Product Overview
This 3-flute carbide square end mill is designed for aluminum
slotting, side milling, shoulder machining, flat-bottom pocket
machining, profile milling and general CNC machining of
non-ferrous materials.
Manufactured from imported carbide rods with a 0.8 μm grain
size and 10% cobalt content, the cutter combines a 55% core
diameter, a 45° helix, a 6° positive end rake, a 12° positive
peripheral rake and 1200-grit precision-ground cutting edges.
This geometry helps improve chip evacuation, lower cutting
resistance and produce cleaner aluminum surfaces with fewer burrs.
Recommended Aluminum Machining Applications
The three-flute configuration balances tool rigidity, chip
space and cutting-edge engagement for common aluminum machining
operations requiring a square or flat end profile.
Aluminum Slotting
Suitable for grooves and slots where efficient chip
evacuation, sharp cutting and low cutting resistance
are required.
Side and Profile Milling
Designed for aluminum walls, straight profiles,
peripheral surfaces and external component contours.
Shoulder Machining
Supports stepped features and aluminum shoulders
requiring clean sidewalls and a controlled
wall-to-bottom transition.
Flat-Bottom Pocket Machining
Suitable for pockets, recessed areas and planar
aluminum features requiring a flat machined bottom.
Designed for Aluminum Machining Challenges
Aluminum can generate long ductile chips, built-up edge,
burrs and visible surface differences when the cutting edge
is not sufficiently sharp or the flute space is too limited.
Chip Evacuation and Cutting Efficiency
- Three-flute design balances feed capability and chip space
- 55% core diameter provides sufficient flute capacity
- 45° helix supports smooth upward chip movement
- Positive rake geometry reduces cutting resistance
- Efficient evacuation helps reduce chip recutting
- Suitable for slotting, side milling and pocket machining
Burr, Adhesion and Surface Control
- Sharp cutting edges reduce aluminum deformation
- 1200-grit grinding improves edge consistency
- Positive peripheral rake supports cleaner sidewalls
- Lower cutting pressure helps reduce burr formation
- DLC option helps reduce friction and material adhesion
- Low runout and rigid toolholding are recommended
3-Flute Aluminum Square End Mill Geometry
The carbide substrate, three-flute structure, positive rake
geometry, core diameter and helix angle work together to
improve aluminum cutting efficiency and surface consistency.
0.8 μm Carbide Grain Size
Imported carbide rods with an approximately 0.8 μm
grain size support consistent cutting-edge geometry,
wear resistance and stable production quality.
10% Cobalt Content
The 10% cobalt content provides a balance of carbide
hardness, cutting-edge strength and substrate toughness
for aluminum and non-ferrous machining.
Three-Flute Cutting Structure
Three cutting edges provide higher feed potential
than a two-flute cutter while retaining sufficient
flute space for aluminum-chip evacuation.
55% Core Diameter
The approximately 55% core design balances cutter
rigidity with sufficient chip space for aluminum
roughing, slotting and side milling.
45° Helix Geometry
The 45° helix supports smooth cutting engagement,
stable upward chip movement and reduced cutting
resistance during CNC aluminum milling.
6° Positive End Rake
The positive end-edge rake helps reduce cutting
pressure during slotting and flat-bottom pocket
machining.
12° Positive Peripheral Rake
The positive peripheral rake creates a sharper
cutting action for aluminum walls, profiles
and side-milling surfaces.
1200-Grit Precision Grinding
Fine grinding with a 1200-grit grinding wheel helps
maintain edge sharpness, reduce microscopic defects
and limit burr formation.
Flat-End Cutting Profile
The square or flat end profile supports slots,
shoulder machining, planar surfaces and
flat-bottom aluminum pockets.
Low Cutting Resistance
Sharp positive geometry helps reduce rubbing,
cutting pressure and unnecessary heat generation
during aluminum machining.
Reduced Built-Up Edge
Sharp cutting edges, suitable chip space and optional
DLC coating help reduce aluminum adhesion and
built-up edge under suitable cutting conditions.
Improved Surface Consistency
Precision-ground cutting edges help reduce visible
surface mismatch between machining passes and
improve overall workpiece appearance.
Profile Accuracy Within 5 μm
Walter HELICHECK PLUS profile measurement supports
cutting-profile and dimensional control within
approximately 5 μm.
50× Microscopic Edge Inspection
Every tool is inspected under 50× magnification
to check for visible cutting-edge chipping,
serrations and abnormal defects.
Walter Five-Axis Grinding
Walter five-axis precision grinding supports stable
tool dimensions, consistent flute geometry and
repeatable cutting-edge quality.
Consistent Batch Production
Precision grinding and multi-stage inspection help
maintain dimensional and cutting-edge consistency
across wholesale and OEM production batches.
Uncoated and DLC Rainbow-Coated Options
Coating selection should be based on the aluminum grade,
silicon content, cutting parameters, lubrication condition
and required tool life.
Uncoated 3-Flute End Mills
- Retain a sharp cutting-edge profile
- Low cutting resistance for general aluminum machining
- Suitable for common 6000-series aluminum alloys
- Supports clean chip formation
- Suitable for slotting, side milling and pockets
DLC Rainbow-Coated End Mills
- Reduced friction at the tool-workpiece interface
- Helps reduce aluminum adhesion and built-up edge
- Improved wear resistance for selected applications
- Suitable for selected aluminum-silicon alloys
- Available according to customer requirements
Standard 3-Flute Aluminum End Mill Sizes
Standard metric sizes, extended-length tools, long-reach
configurations and customized dimensions are available
for aluminum machining and wholesale orders.
| Tool Diameter | Standard Metric Sizes / Custom Diameter |
|---|---|
| Flute Configuration | 3 Flutes / Custom |
| Flute Length | Standard / Extended / Custom |
| Neck Length | Standard / Long Reach / Custom |
| Shank Diameter | Standard Shank / Custom Shank |
| Overall Length | Standard / Extended Length / Custom |
| Coating Options | Uncoated / DLC Rainbow |
Send us the required diameter, flute length, neck length,
shank diameter, overall length, aluminum grade, coating
preference and order quantity to receive the current
size list and wholesale quotation.
Available Configurations
Standard and customized 3-flute carbide square end mills
can be supplied according to the aluminum grade, machining
operation, reach requirement and coating preference.
| Tool Type | Carbide Square / Flat End Mill for Aluminum |
|---|---|
| Flute Configuration | 3 Flutes / Custom |
| Carbide Material | Imported Solid Carbide Rods |
| Carbide Grain Size | Approximately 0.8 μm |
| Cobalt Content | 10% |
| Coating Options | Uncoated / DLC Rainbow |
| Core Diameter | Approximately 55% |
| Helix Angle | 45° |
| End Rake Angle | 6° Positive Rake |
| Peripheral Rake Angle | 12° Positive Rake |
| Cutting-Edge Grinding | 1200-Grit Precision Grinding |
| Profile Accuracy | Within Approximately 5 μm |
| Main Operations |
Slotting / Side Milling / Shoulder Machining / Pocket Machining / Profile Milling |
| Dimensions |
Standard Sizes / Long Reach / Custom Dimensions |
| Marking |
ZHY Logo / Customer Logo / Customer Model Number |
| Packaging |
Standard Packaging / Private-Label Packaging |
Recommended Workpiece Materials
This 3-flute carbide square end mill is primarily designed
for aluminum and selected non-ferrous materials requiring
sharp cutting edges and efficient chip evacuation.
Aluminum End Mill Manufacturer and OEM Supplier
ZHY is a China-based manufacturer and OEM supplier of
3-flute carbide square end mills for aluminum, serving
distributors, importers, CNC workshops, manufacturers
and private-label cutting-tool brands.
Wholesale Order Support
- Standard and mixed-size orders
- 3-flute and customized configurations
- Uncoated and DLC rainbow-coated options
- Samples for aluminum machining tests
- Bulk quotations based on size and quantity
- Long-reach and customized dimensions
OEM and Private Label
- Customer logo laser marking
- Customer product and model numbers
- Custom labels and barcode stickers
- Plastic box and outer carton options
- Private-label packaging support
- Packaging verification before shipment
Production and Batch Quality Control
Five-axis grinding, profile measurement and microscopic
inspection support stable dimensions, consistent cutting
edges and repeatable wholesale delivery.
Request a 3-Flute Aluminum End Mill Quotation
Send us the required diameter, flute length, neck length,
overall length, aluminum grade, coating preference,
machining operation, quantity and packaging requirements.
Our team will review the application and provide a suitable
wholesale or OEM quotation.
