Solid Carbide End Mills
High-performance solid carbide end mills for steel, stainless steel, titanium alloys, hardened materials and aluminum. Available in 55°, 60°, 65°, 68° and 70° series, with flat, ball-nose, corner-radius, roughing and special-profile options for stable cutting, longer tool life and reliable surface finishes.
ENGINEERED AROUND THE APPLICATION
Why PRONIXT End Mills
Tool material is only one part of milling performance. Flute geometry, helix angle, edge preparation and coating need to work together with the workpiece, machine and cutting strategy.
Material-Specific Geometry
Polished flutes for non-ferrous materials, unequal flute designs for difficult alloys and purpose-built cutting edges for roughing or finishing.
Coating Selection
NACO4, DLC, Balzers and Balzers Premium options are matched to the heat, wear and chip-evacuation demands of each series.
Controlled Precision
Catalog specifications include 0/−0.02 mm cutting-diameter tolerance, h6 shanks and tool runout controlled to ≤0.01 mm.
Application Support
We review material, hardness, machine conditions and target geometry to support series selection and custom-tool evaluation.
START WITH THE WORKPIECE
Choose by Material
The fastest way to narrow the range is to begin with the workpiece material and hardness, then refine the choice by operation, finish requirement and machine rigidity.
Aluminum & Non-Ferrous
Polished flute and DLC options help reduce built-up edge, improve chip evacuation and support clean surface finishes.
Aluminum · Acrylic · CopperSteel & Cast Iron
General-purpose and roughing geometries cover everyday slotting, side milling and stock removal.
55° General · 65° RoughingStainless Steel
Stable cutting edges and higher-performance coatings support wear resistance and controlled engagement.
65° · 68° · 70°Titanium Alloys
Unequal flute and variable-helix designs help suppress vibration during demanding aerospace and precision work.
68° · 70°Mold & Pre-Hardened Steel
Flat, ball-nose and corner-radius choices support roughing, semi-finishing and 3D contour milling.
65° · 68° · 70°Hardened Materials
Balzers-coated series cover higher-hardness applications, including workpiece materials in the HRC55–65 range.
68° · 70°PRODUCT FAMILY NAVIGATION
Choose the Right End Mill Series
Each family below groups the most relevant geometries, coatings and material targets from the PRONIXT catalog. Select a series to review its strengths before checking the full dimensional tables.
55° Coated General-Purpose End Mills
NACO4-coated tools for routine milling in steel, stainless steel and cast iron up to HRC40.
View Series 02 · ALUMINUM55° Aluminum End Mills
Polished 3-flute geometry for aluminum, acrylic and copper with clean chip evacuation and low burr formation.
View Series 03 · SURFACE FINISHAluminum Mirror-Finish End Mills
Highly polished flute surfaces help reduce built-up edge and support a bright finish on non-ferrous parts.
View Series 04 · DLC ALUMINUM60° DLC Aluminum U-Flute End Mills
DLC coating, polished U-flutes and a 45° helix support efficient cutting in aluminum and other non-ferrous materials.
View Series 05 · DIFFICULT MATERIALS65° Coated End Mills
NACO4-coated flat, ball and corner-radius tools for stainless steel, titanium, mold steel and materials up to HRC50.
View Series 06 · HIGH STABILITY68° Unequal-Flute End Mills
Balzers-coated unequal-flute flat and corner-radius tools use a 40°/42° variable helix, with 45° ball-nose options for stable roughing and finishing in difficult materials.
View Series 07 · MICRO MACHINING68° Micro End Mills
Small-diameter flat and ball-nose tools for precision features where edge quality and controlled runout are critical.
View Series 08 · PRECISION FINISHING70° Unequal-Flute End Mills
Balzers Premium-coated unequal-flute flat and corner-radius tools use a 40°/42° variable helix, with 45° ball-nose options for precision finishing in difficult materials.
View Series 09 · STOCK REMOVAL65° Roughing End Mills
Four-flute NACO4-coated roughers for efficient stock removal in medium-carbon steels such as AISI 1045 and C45, as well as cast iron and tool steel.
View Series 10 · HOLE LOCATIONCarbide Center Drills
Coated steel-use and uncoated aluminum-use options for accurate hole starting and location work.
View Series 11 · EDGE PREPARATIONCarbide Chamfer End Mills
Dedicated chamfer tools for deburring, countersinking and controlled edge preparation in steel or aluminum.
View Series 12 · TWO-SIDED CHAMFERTop & Bottom Chamfer End Mills
90° tools for machining upper and lower edge chamfers while reducing repositioning and extra operations.
View Series 13 · INTERNAL PROFILESInternal Radius End Mills
Profile-specific tools for controlled internal radii, undercuts and transition features in steel or aluminum.
View Series 14 · SLOT MACHININGT-Slot End Mills
Purpose-built geometries for T-slots and undercut features, with steel-use and aluminum-use versions.
View Series 15 · ANGLED PROFILESDovetail End Mills
Carbide dovetail tools for angled grooves and undercuts, available for steel and aluminum machining.
View SeriesSERIES DETAILS
From General Milling to Hardened Materials
The product families below summarize the catalog’s cutting strategy. Exact diameters, flute lengths, corner radii and overall lengths remain in the downloadable dimensional tables.
55° GENERAL SERIES
Reliable Coverage for Daily Milling
The 55° range combines NACO4 coating with a conventional 35° helix for balanced wear resistance and cutting stability. Flat, ball-nose and corner-radius styles cover everyday operations without overcomplicating tool selection.
- Materials: steel, stainless steel and cast iron
- Workpiece Hardness: up to HRC40
- Geometry: 2-flute and 4-flute options
- Profiles: flat, ball nose and corner radius
ALUMINUM SERIES
Polished Flutes for Clean Chip Evacuation
Three aluminum families address different priorities: a polished 55° series, a DLC-coated 60° U-flute series for efficient cutting, and a mirror-finish series for surface quality. All are designed around free chip flow and reduced burr formation.
- Materials: aluminum, acrylic and copper
- Flutes: 3-flute designs
- Helix: 35° or 45° by series
- Options: polished, DLC and mirror finish
65° PERFORMANCE SERIES
A Broad Range for Difficult Materials
The NACO4-coated 65° family covers stainless steel, pre-hardened steel, titanium alloys, mold steel and steel up to HRC50. Flat, ball-nose and corner-radius profiles allow the same family to support roughing, wall milling and 3D finishing.
- Workpiece Hardness: up to HRC50
- Helix: 35°
- Flutes: 2F and 4F by profile
- Coating: NACO4
68° HIGH-STABILITY SERIES
Unequal Flutes for Vibration Control
Four-flute flat and corner-radius tools use 40°/42° variable helix geometry, while the ball-nose range uses a 45° helix. Balzers coating and edge honing support stainless steel, titanium alloy, mold steel and hardened materials in the HRC55–65 range.
- Geometry: unequal flute design
- Edge: honed for tool-life stability
- Flat / radius: 40°/42° variable helix
- Profiles: flat, ball nose and corner radius
70° UNEQUAL-FLUTE SERIES
Unequal Flutes for Precision Finishing
The 70° family combines Balzers Premium coating, unequal flute design and edge honing. It is positioned for stainless steel, titanium alloy, mold steel and hardened materials where surface finish, edge integrity and predictable tool life matter.
- Workpiece Hardness: HRC55–65
- Flat / radius: 40°/42° variable helix
- Ball nose: 45° helix
- Coating: Balzers Premium
MATERIALS & TECHNICAL GUIDES
68° & 70° High-Helix End Mills
Learn how unequal pitch and 40°/42° variable-helix geometry help interrupt repeating vibration patterns when milling titanium alloys, 316 stainless steel and high-temperature alloys.
TECHNICAL SUPPORT & CUSTOM TOOLING
When a Standard End Mill Is Not Enough
A special feature, deep reach, difficult material or production bottleneck may require more than a catalog dimension. PRONIXT can evaluate application-specific geometry and tooling requirements.
Common Catalog Precision
These are common specifications stated across the catalog. Final values should always be confirmed against the selected series and diameter.
- Cutting diameter tolerance: 0 / −0.02 mm
- Shank tolerance: h6
- Tool runout: ≤0.01 mm
- Overall length up to 200 mm in selected series
Custom End Mill Evaluation
Share the workpiece drawing and machining conditions so the cutting diameter, flute length, reach, shank, corner treatment, flute count, helix, edge preparation and coating can be reviewed together.
- Workpiece material and hardness
- Machine model, spindle and toolholding condition
- Operation type, engagement and required finish
- Critical dimensions, tolerance and target quantity
Need Help Choosing the Right End Mill?
Send us the material, hardness, drawing, machine information and machining goal. We will use those conditions to narrow the series and evaluate standard or custom options.