Single Flute

Scientific name	Composition	Physical properties	Features	Typical applications
Uncoated Sharp edge	Sub-micron carbide substrate (WC–Co). No coating layer, keeps the cutting edge extremely sharp.	Colour: natural carbide grey. Hardness: ~1800–2000 HV (substrate). Temp. resistance: <600°C. Wear resistance: limited vs coated tools, but best edge sharpness.	Ultra-sharp cutting edge, excellent chip evacuation, very good surface finish in soft/sticky materials.	Aluminium, copper, brass, plastics, acrylic, PVC, wood/MDF. Great for high-speed cutting and mirror-finish needs.
DLC Best for Al	Diamond-like carbon (a-C:H) coating by PVD with high sp³ bond content; very smooth surface.	Colour: black / dark grey. Hardness: ~2000–3000 HV. Friction: very low (~0.05–0.15). Temp. resistance: ~350–400°C.	Ultra-low friction + anti-adhesion. Reduces built-up edge, improves surface finish and tool life on aluminium.	Aluminium alloys (6061/7075), copper, graphite, plastics, composites. Popular choice for single flute Al machining.
TiB₂ Anti-sticking	Titanium diboride ceramic coating with strong chemical stability against aluminium adhesion.	Colour: dark grey. Hardness: ~3200–3500 HV. Friction: low vs aluminium. Temp. resistance: up to ~900°C.	Excellent anti-sticking performance on aluminium; maintains sharp edge and extends tool life at high speed.	High-speed aluminium machining, aerospace Al parts, automotive Al components, thin-wall and slotting operations.
TiAlN / AlTiN High heat	Titanium aluminium nitride coating; higher Al improves oxidation resistance for high-temperature machining.	Colour: violet / dark purple. Hardness: ~3200–3500 HV. Oxidation resistance: ~800–900°C. Friction: moderate (~0.4–0.5).	Great wear resistance and heat stability for dry/high-speed cutting. Not ideal for aluminium (may increase BUE).	Alloy steel, stainless steel, hardened steel. Suitable for slotting/deep cavity milling where heat is high.
CrN Balanced	Chromium nitride coating by PVD; good toughness and smoother surface compared with some hard coatings.	Colour: silver-grey. Hardness: ~1800–2200 HV. Friction: ~0.3 (typical). Temp. resistance: ~700°C.	Balanced wear resistance + anti-adhesion. Good all-round option for mixed materials and stable finish.	Aluminium alloys, copper alloys, mild steel, plastics. General-purpose single flute milling and finishing.
CVD Diamond Ultra wear	Polycrystalline diamond coating deposited by CVD; extremely hard and wear-resistant (non-ferrous use).	Colour: light grey. Hardness: ~8000–10000 HV. Friction: extremely low. Temp. resistance: >1000°C (non-ferrous).	Ultimate tool life and abrasion resistance. Very smooth surface; higher cost and more brittle than PVD coatings.	Graphite, CFRP/GFRP, PCB materials, high-silicon aluminium (>12% Si). Best for abrasive non-ferrous materials.

Scientific
name

Composition

Physical properties

Features

Typical applications

Uncoated
Sharp edge

Sub-micron carbide substrate (WC–Co). No coating layer, keeps the cutting edge extremely sharp.

Colour: natural carbide grey.
Hardness: ~1800–2000 HV (substrate).
Temp. resistance: <600°C.
Wear resistance: limited vs coated tools, but best edge sharpness.

Ultra-sharp cutting edge, excellent chip evacuation, very good surface finish in soft/sticky materials.

Aluminium, copper, brass, plastics, acrylic, PVC, wood/MDF. Great for high-speed cutting and mirror-finish needs.

DLC
Best for Al

Diamond-like carbon (a-C:H) coating by PVD with high sp³ bond content; very smooth surface.

Colour: black / dark grey.
Hardness: ~2000–3000 HV.
Friction: very low (~0.05–0.15).
Temp. resistance: ~350–400°C.

Ultra-low friction + anti-adhesion. Reduces built-up edge, improves surface finish and tool life on aluminium.

Aluminium alloys (6061/7075), copper, graphite, plastics, composites. Popular choice for single flute Al machining.

TiB₂
Anti-sticking

Titanium diboride ceramic coating with strong chemical stability against aluminium adhesion.

Colour: dark grey.
Hardness: ~3200–3500 HV.
Friction: low vs aluminium.
Temp. resistance: up to ~900°C.

Excellent anti-sticking performance on aluminium; maintains sharp edge and extends tool life at high speed.

High-speed aluminium machining, aerospace Al parts, automotive Al components, thin-wall and slotting operations.

TiAlN / AlTiN
High heat

Titanium aluminium nitride coating; higher Al improves oxidation resistance for high-temperature machining.

Colour: violet / dark purple.
Hardness: ~3200–3500 HV.
Oxidation resistance: ~800–900°C.
Friction: moderate (~0.4–0.5).

Great wear resistance and heat stability for dry/high-speed cutting. Not ideal for aluminium (may increase BUE).

Alloy steel, stainless steel, hardened steel. Suitable for slotting/deep cavity milling where heat is high.

CrN
Balanced

Chromium nitride coating by PVD; good toughness and smoother surface compared with some hard coatings.

Colour: silver-grey.
Hardness: ~1800–2200 HV.
Friction: ~0.3 (typical).
Temp. resistance: ~700°C.

Balanced wear resistance + anti-adhesion. Good all-round option for mixed materials and stable finish.

Aluminium alloys, copper alloys, mild steel, plastics. General-purpose single flute milling and finishing.

CVD Diamond
Ultra wear

Polycrystalline diamond coating deposited by CVD; extremely hard and wear-resistant (non-ferrous use).

Colour: light grey.
Hardness: ~8000–10000 HV.
Friction: extremely low.
Temp. resistance: >1000°C (non-ferrous).

Ultimate tool life and abrasion resistance. Very smooth surface; higher cost and more brittle than PVD coatings.

Graphite, CFRP/GFRP, PCB materials, high-silicon aluminium (>12% Si). Best for abrasive non-ferrous materials.

Each HNCarbide single flute spiral end mill is precision-engineered from fine-grain carbide with a large flute chip pocket to ensure smooth chip flow, low cutting forces, and consistent tool life. As a single flute cutter, single flute drill, and single flute milling cutter, this tool excels in lightweight material machining—delivering superior chip evacuation and surface finish compared with straight tools and single flute vs double flute alternatives on aluminum, plastics, and soft metals.

To match diverse machining needs, HNCarbide offers multiple spiral geometries, including down spiral end mill options that enhance top-edge control and surface quality on thin walls, laminated materials, and delicate plastic parts. For finishing operations, our single flute countersink, single flute chamfering cutters, and single flute reamer deliver clean holes, bevels, and precise edge conditions.

For advanced CNC setups, we provide left hand spiral end mill, left hand spiral right hand cut end mill, and left hand spiral left hand cut end mill variants designed to optimize chip direction and cutting stability based on spindle rotation and fixture requirements. These combinations help minimize built-up edge, reduce material adhesion, and maintain steady performance in continuous production.

In addition, our line includes single flute thread mill polished flute options that support improved hole threading and surface quality with optional advanced coatings for enhanced wear resistance and high RPM reliability.

Available in both inch and metric sizes—1/8, 1/4, 3/8, 1/2 inch and 3mm–20mm—including popular 1/4 shank versions—these cutters are ideal for CNC routers, vertical machining centers, and high-speed milling of aluminum, plastics, copper, and soft alloys.

✔ Excellent chip evacuation
✔ Stable cutting performance
✔ Optimized edge finish
✔ Long-lasting durability

At HNCarbide, every shipment of single flute spiral end mill tools is meticulously packaged to ensure your precision cutters arrive intact and ready for use. Each premium carbide spiral end mill and single flute end mill is individually placed in a shock-resistant protective case and clearly labeled with full specifications—inclusive of tool type (upcut or down spiral end mill option), diameter (e.g., 1/8, 1/4, 3/8, 1/2 inch or 3mm–20mm), and shank style such as 1/4 shank—then sealed in moisture-proof packaging before being boxed for shipment.

To support specialized machining needs and quick identification, labels can also indicate custom configurations like left hand spiral end mill, left hand spiral right hand cut end mill, or left hand spiral left hand cut end mill, enabling fast job setup on the shop floor for CNC routers, vertical machining centers, and high-speed milling applications.

For large-volume orders of single flute cutters and spiral tooling, cartons are reinforced with double-wall cardboard boxes or sturdy wooden crates, ensuring maximum safety during international transport. We collaborate with reliable logistics partners to deliver your tools via air freight, sea freight, or express courier, ensuring your single flute spiral end mill tools reach you quickly and securely—ready for consistent performance right out of the box.