Complete range of cavity form tools compatible with Sun Hydraulics, HydraForce, Parker and Bosch Rexroth cartridge valve standards.
Seven cavity tool series, each with its own application guide, tool-selection notes and RFQ checklist. Choose the series that matches your part to see configurations, materials and custom options.
Precision reamers and form tools for SUS Hydraulics-type hydraulic valve and manifold cavities — critical diameters, depths, angles, and surface finish held to print, using established geometries or your cavity drawing.
16 productsView series 02Cartridge Valve Cavity Reamers & Form ToolsPrecision tooling for HydraForce-type cartridge valve cavities — standard profiles ready to quote, custom geometries engineered from your cavity drawing.
4 productsView series 03Cartridge Valve Cavity Reamers & Form ToolsPrecision cavity tooling for Bucher Hydraulics-type cartridge valve cavities — established profiles ready to quote and custom geometries engineered from your drawing.
Made to your drawingView series 04Cartridge Valve Cavity Reamers & Form ToolsCavity tooling for Bosch Rexroth-type hydraulic valve cavities — engineered for repeatable bore geometry across manifold production, with established profiles and custom designs from your drawing.
Made to your drawingView series 05Cartridge Valve Cavity Reamers & Form ToolsCavity reamers and form tools for Parker-type cartridge valve cavities and manifolds — established port and cavity profiles plus fully custom geometries engineered from your drawing.
6 productsView series 06Cartridge Valve Cavity Reamers & Form ToolsTooling for Danfoss-type cartridge valve cavities — roughing and finishing reamers profiled to the cavity step sequence, plus custom designs engineered from your drawing.
12 productsView series 07Cartridge Valve Cavity Reamers & Form ToolsCavity tooling for Eaton Vickers-type hydraulic valve cavities — established valve geometries supported with modern tooling, plus custom designs engineered from your drawing.
Made to your drawingView seriesNot sure which series fits? Send your drawing and our engineers will recommend the tool.
11 ProductsSolid carbide drills with internal coolant for steel, stainless steel, cast iron and high-temperature alloys.
View Products23 ProductsCarbide square and ball end mills for your production requirements.
View Products9 ProductsUltra-fine grain tungsten carbide taps for a wide range of thread standards.
View Products4 ProductsUltra-fine grain tungsten carbide end mills for carbon fibre (CFRP) machining.
View Products5 ProductsStep drills and special-profile drills made to your drawings or samples.
View Products4 ProductsSpecial-profile milling cutters made to your drawings or samples.
View Products12 ProductsRoughing and finishing cavity tools for Danfoss-compatible cartridge valve cavities.
View Products3 ProductsCarbide drills for deep holes with stable chip evacuation and straightness.
View Products11 ProductsGrade A pinion-type and disc-type gear shaper cutters in M35 cobalt HSS with TiAlN coating, for finishing and pre-shaving internal and external gears, per GB/T 6081 and DIN 3968.
View Products12 ProductsCarbide, cermet and welded reamers for high-precision and deep-hole bores.
View Products1 ProductsHigh-speed steel milling cutters for general and interrupted machining.
View Products21 ProductsHSS and HSS-E spiral flute, straight flute and forming taps.
View Products4 ProductsRoughing and finishing cavity tools for HydraForce-compatible cartridge valve cavities.
View Products8 ProductsPort forming cutters for ISO 1179 BSPP (G thread) ports.
View Products4 ProductsPort contour cutters for ISO 6149 metric thread ports.
View Products8 ProductsThread mills for titanium alloy and stainless steel orthopedic locking plates.
View Products6 ProductsRoughing and finishing cavity tools for Parker-compatible cartridge valve cavities.
View Products2 ProductsCarbide and HSSE end mills for engineering plastics, acrylics and composites.
View Products5 ProductsPort contour cutters for SAE J1926 straight thread O-ring ports.
View Products16 ProductsRoughing and finishing cavity tools for Sun Hydraulics-compatible cartridge valve cavities.
View Products3 ProductsT-slot and undercut cutters for slots, grooves and keyways.
View Products23 ProductsTungsten carbide thread mills for a wide range of thread standards.
View Products11 ProductsUltrasonic cutting blades for honeycomb cores, prepregs and soft composites. Made to order to your drawings.
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38 ProductsComplete range of cavity form tools compatible with Sun Hydraulics, HydraForce, Parker and Bosch Rexroth cartridge valve standards.
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17 ProductsPCD tipped and diamond coated tools designed for clean, delamination-free machining of carbon fiber, GFRP and other composite stacks.
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11 ProductsPrecision gear cutting tools including hobs, shaper cutters and form milling cutters for spur, helical and spline applications.
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31 ProductsSolid carbide drills, indexable drills, reamers and boring bars engineered for tight tolerance hole production in hydraulic manifolds and valve bodies.
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31 ProductsHigh performance milling cutters with TiAlN and AlTiN coatings for steel, stainless and superalloy machining.
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17 ProductsSingle-pass port tools producing complete port form, chamfer and thread relief in one operation. Available in all major hydraulic standards.
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61 ProductsComplete threading program including taps, solid carbide thread mills and indexable inserts for UN, metric, NPT and BSPP threads.
View ProductsWe are still adding this range to our online catalog. These tools are available made to order: send your drawing or sample and we will quote sizes, lead time and price, or contact our team for current availability.
Tools in this category are produced on request to your drawing, sample or specification. Send us your requirements and our engineers will reply within 24 hours.
Can't find your answer? Send your drawing and application details and our engineers will advise.
Ask an engineerIn many cases, yes—especially when machining softer materials or running shorter reaches. However, for applications requiring tight tolerances, hardened materials, or extremely deep cavity features, we highly recommend separating the operations: utilizing a dedicated roughing tool to remove bulk material, followed by a precision finishing tool to achieve optimal surface finish and dimensional accuracy.
To reduce chatter in deep cavities, we suggest the following technical optimizations:
Absolutely. JIAYI SEIKO specializes in engineering and manufacturing custom, non-standard cavity cutting tools tailored precisely to customer-supplied prints, CAD drawings, or 3D models. We can accommodate complex geometries, custom profiles, specific corner radii, and extended reach requirements. Click here to request a custom tool blueprint and quotation.
We provide a comprehensive range of advanced PVD/CVD coatings (such as TiAlN, AlTiN, nACo, or Diamond) engineered for specific workpiece materials, including hardened steel, aluminum alloys, stainless steel, and titanium. Your dedicated JIAYI SEIKO technical representative or regional distributor will assist you in matching the optimal coating and substrate to your specific cutting conditions.
Yes, this is one of our core specialties. Hydraulic valve cavities feature demanding multi-stepped diameters and strict concentricity requirements to prevent pressure leakage. JIAYI SEIKO customizes hydraulic port tools, multi-stage cavity reamers, and step line reamers. Engineered with optimized guide pads and tailored carbide grades, these tools ensure perfect alignment across multiple oil-port chambers in a single, stable machining pass.
