Step drills and special-profile drills made to your drawings or samples.

Stepped, Form, and Combination Drills
Custom stepped, form, and combination drills built from your drawing — combining required features in one engineered tool to reduce tool changes and simplify the machining sequence where the application supports it.
Start with the component print and process objective, then confirm what should be combined into one tool.
Machine multiple coaxial diameters with a tool ground to the approved step sequence and dimensions.
Create application-specific profiles using cutting geometry developed from the component feature.
Combine compatible drilling, chamfering, countersinking, or forming operations after engineering review.
Reproduce or improve an existing special tool using its drawing, a usable sample, and current process data.
Send the component drawing, required tolerances and finish, workpiece material, machine and holder details, coolant method, current cycle, expected volume, and any performance issue to solve. JIAYI will review manufacturability and confirm the proposed tool geometry before quotation.

Open any tool for dimensions and drawings, or request a quote for a modified version.
11 ProductsSolid carbide drills with internal coolant for steel, stainless steel, cast iron and high-temperature alloys.
View Products
23 ProductsCarbide square and ball end mills for your production requirements.
View Products
9 ProductsUltra-fine grain tungsten carbide taps for a wide range of thread standards.
View Products
4 ProductsUltra-fine grain tungsten carbide end mills for carbon fibre (CFRP) machining.
View Products
5 ProductsStep drills and special-profile drills made to your drawings or samples.
View Products
4 ProductsSpecial-profile milling cutters made to your drawings or samples.
View Products
12 ProductsRoughing and finishing cavity tools for Danfoss-compatible cartridge valve cavities.
View Products
3 ProductsCarbide drills for deep holes with stable chip evacuation and straightness.
View Products
12 ProductsCarbide, cermet and welded reamers for high-precision and deep-hole bores.
View Products
1 ProductsHigh-speed steel milling cutters for general and interrupted machining.
View Products
21 ProductsHSS and HSS-E spiral flute, straight flute and forming taps.
View Products
4 ProductsRoughing and finishing cavity tools for HydraForce-compatible cartridge valve cavities.
View Products
8 ProductsPort forming cutters for ISO 1179 BSPP (G thread) ports.
View Products
4 ProductsPort contour cutters for ISO 6149 metric thread ports.
View Products
8 ProductsThread mills for titanium alloy and stainless steel orthopedic locking plates.
View Products
6 ProductsRoughing and finishing cavity tools for Parker-compatible cartridge valve cavities.
View Products
2 ProductsCarbide and HSSE end mills for engineering plastics, acrylics and composites.
View Products
5 ProductsPort contour cutters for SAE J1926 straight thread O-ring ports.
View Products
16 ProductsRoughing and finishing cavity tools for Sun Hydraulics-compatible cartridge valve cavities.
View Products
3 ProductsT-slot and undercut cutters for slots, grooves and keyways.
View Products
23 ProductsTungsten carbide thread mills for a wide range of thread standards.
View Products
38 ProductsComplete range of cavity form tools compatible with Sun Hydraulics, HydraForce, Parker and Bosch Rexroth cartridge valve standards.
View Products
6 ProductsPCD tipped and diamond coated tools designed for clean, delamination-free machining of carbon fiber, GFRP and other composite stacks.
View Products
31 ProductsSolid carbide drills, indexable drills, reamers and boring bars engineered for tight tolerance hole production in hydraulic manifolds and valve bodies.
View Products
31 ProductsHigh performance milling cutters with TiAlN and AlTiN coatings for steel, stainless and superalloy machining.
View Products
17 ProductsSingle-pass port tools producing complete port form, chamfer and thread relief in one operation. Available in all major hydraulic standards.
View Products
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.
Drawing-based engineering. The tool design begins with the finished component feature and the machining sequence, not a generic catalog geometry.
Operation consolidation. Compatible features can be combined to reduce tool changes and setup complexity after the process is reviewed.
Controlled manufacture. Critical geometry is ground and inspected against the approved custom-tool drawing.
Send the drawing, an existing tool, or a representative sample together with the machining conditions. Our engineers will review the application and prepare a tool proposal after technical confirmation.
Request custom tool quote →