Precision Cutting Tools
Built for Modern Manufacturing
High-performance cutting tools engineered for precision, consistency and demanding production environments.
Turning Tools
Precision-engineered CNC turning tools for accurate and efficient machining. Our range includes turning inserts and tool holders for external turning, internal boring, facing, and profiling, delivering reliable performance and consistent surface quality across a wide range of metalworking applications.
Milling Tools
High-performance CNC milling tools engineered for precision, efficiency, and reliable machining. Our range includes end mills, face mills, indexable milling cutters, and carbide milling tools for face milling, slotting, profiling, and complex contour machining across a wide range of industrial applications.
Threading Tools
Precision-engineered CNC threading tools designed for accurate, consistent, and reliable thread machining. Our range includes threading inserts, threading tool holders, taps, and thread mills for internal and external threading applications, delivering excellent thread quality and dependable performance across a wide range of materials and industrial machining operations.
Grooving & Parting Tools
Precision-engineered CNC grooving and parting tools designed for accurate, stable, and efficient machining. Our range includes grooving inserts, parting inserts, and compatible tool holders for external grooving, internal grooving, face grooving, and parting-off operations, delivering consistent cutting performance and reliable results across a wide range of metalworking applications.
Drilling Tools
High-performance CNC drilling tools engineered for precision, efficiency, and consistent hole quality. Our range includes solid carbide drills, indexable drills, and specialized holemaking tools designed for accurate drilling across a wide variety of materials, delivering reliable performance, excellent dimensional accuracy, and long tool life in demanding industrial applications.
Boring & ReamingTools
Precision-engineered CNC boring and reaming tools designed to improve hole accuracy, dimensional consistency, and surface finish. Our range includes boring bars, precision boring heads, and reamers for enlarging, finishing, and refining pre-drilled holes, delivering reliable machining performance and high-quality results across a wide range of industrial applications.
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Tool Holders
High-precision CNC tool holders and clamping systems engineered for stability, accuracy, and reliable machining performance. Our range includes BT and HSK tool holders, ER collet chucks, hydraulic chucks, and precision clamping accessories designed to ensure secure tool retention, minimize runout, and support efficient machining across a wide range of industrial applications.
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Custom Cutting Tools
Vellacho provides custom CNC cutting tools tailored to your specific machining requirements. We support drawing-based and sample-based customization, allowing you to submit technical drawings, design files, or physical samples for customized tool development. From special geometries to non-standard dimensions, we deliver precision-engineered solutions to meet your application needs, with flexible options for small-batch orders.
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From Tungsten Powder to Precision Cutting Tools
Discover how cemented carbide indexable inserts are manufactured, from powder preparation and precision pressing to sintering, grinding, edge preparation, optional coating and final inspection.
How Are Carbide Cutting Inserts Made?
Cemented carbide cutting inserts are manufactured through a carefully controlled powder metallurgy process. Tungsten carbide provides high hardness and wear resistance, while a metallic binder, commonly cobalt, contributes strength and toughness.
Every stage can influence the final tool's dimensional accuracy, cutting-edge quality, wear resistance and machining performance. The exact production route depends on insert geometry, carbide grade and application requirements.
Tungsten Carbide Powder
Tungsten Carbide Powder Preparation
Tungsten powder reacts with a carbon source under controlled conditions to produce tungsten carbide (WC) powder. Powder purity, grain size and particle distribution influence the microstructure and properties of the finished carbide grade.
Tungsten feedstock to WC powderBatching & Wet Milling
Precision Batching and Wet Milling
WC powder, cobalt binder and selected additives are accurately proportioned and milled to achieve a uniform mixture. The formulation and milling conditions are selected to obtain the material characteristics required for the target carbide grade.
Controlled composition and dispersionSpray Drying & Granulation
Spray Drying and Granulation
The prepared slurry is spray-dried into granules with suitable flow and filling characteristics. Proper granulation helps distribute powder more consistently within the pressing die and supports repeatable compact density.
Granulated powder ready for pressingPrecision Pressing
Precision Die Pressing
Granulated powder is compacted in precision dies to form the insert's basic geometry. Depending on the design, the die can create the outline, center hole and selected chipbreaker features. The pressed green compact remains fragile before sintering.
Powder to green compactDebinding & Sintering
Debinding and Sintering
Where applicable, forming agents are removed before or during the controlled thermal cycle. Sintering densifies the compact and develops the required cemented carbide microstructure. Controlled shrinkage and atmosphere are important for final properties and dimensional consistency.
Green compact to sintered carbidePrecision Grinding
Precision Face and Profile Grinding
Diamond grinding wheels are used where required to finish specified surfaces, thicknesses and profiles. Grinding helps achieve the dimensional tolerances, flatness and seating accuracy required by the insert design. Not every insert requires identical grinding operations.
Dimensional control and surface finishingCutting Edge Preparation
Brushing, Deburring and Edge Treatment
Depending on the product, brushing, honing or other controlled methods remove unwanted burrs and establish the required cutting-edge condition. Edge preparation is selected to balance sharpness, edge strength and resistance to chipping.
Application-specific cutting edgesCleaning & Surface Preparation
Cleaning and Surface Preparation
Inserts are cleaned to remove residual grinding debris, oil and other contaminants. When coating is required, additional substrate preparation may be used to support coating quality and consistency.
Clean surfaces ready for further processingOptional Surface Coating
CVD or PVD Coating
Depending on the insert grade and intended cutting application, chemical vapor deposition (CVD), physical vapor deposition (PVD) or an uncoated finish may be selected. Coating systems can improve wear resistance and thermal performance under suitable cutting conditions.
Coating selected by product requirementsFinal Quality Inspection
Dimensional and Visual Inspection
Final inspection verifies the specified dimensions, geometry, surface condition and applicable coating requirements. Depending on the product, checks may include thickness, inscribed circle, hole dimensions, edge integrity and other characteristics defined by the quality plan.
Measurement and quality verificationMarking & Packaging
Product Identification and Packaging
Approved inserts are identified by the appropriate model, grade or product information and packed to protect cutting edges from impact, contamination and handling damage. Finished products are prepared for storage and delivery.
Finished inserts ready for shipmentFrom Powder to Precision
Each stage contributes to the consistency, quality and performance of the finished cutting tool.