Quality is not a matter of taste.
Carbide Drawing Tools, Made in Herborn since 1948
Tungsten carbide wire drawing dies, dies for bars and tubes, and carbide mandrels for the wire, cable and tube industries. Made to order and hand-polished in Germany — delivered within 24 hours when necessary.
Need a die to your specification or drawing?
Drawing dies, mandrels and custom tooling, designed for your material and reduction — with 3D CAD and dedicated calculation software.
Request a quoteNeed polishing or inspection supplies?
Diamond suspensions, pin gauges and diamond grinding pins — the same supplies our own polishing uses daily, from stock. German shop, English inquiries welcome.
Ask in EnglishWhich drawing tools does Leng manufacture?
We manufacture and supply drawing tools in tungsten carbide, steel and ceramic for the tube and wire industries and for bar drawing, plus custom tooling in hard materials to customer drawings. Every tool is made to order.
Wire Drawing DiesFor wire and other long products — also ceramic and hard-material coated.
bores from 0.2 mm
Drawing Dies for Bars & TubesFor bar and tube production, all common nib and case dimensions.
cases up to Ø 450 mm
Carbide Mandrels & PlugsFixed plugs for drawbenches, floating mandrels for continuous drawing.
tube Ø 2.5–200 mm
Shaving & Scalping DiesDescaling and cleaning of rolled and cast wire — defined cutting edge.
to your drawing
Sheathing Nozzles & GuidesFor the cable industry — carbide or ceramic, polished or unpolished.
to your drawing
Compacting DiesCompacting cables and wire ropes — split design and coatings available.
TiC/TiN · DLC · diamond
Custom Carbide ToolingTo your drawing — as blank or finished part, also steel and ceramic.
tight tolerances
ReconditioningRegrinding and polishing worn tools to the next size.
service
AccessoriesDiamond suspensions, pin gauges, grinding pins — much of it from stock.
from stock
We regrind and polish worn drawing tools to the next size — like new, at considerably lower cost.
Request reconditioning How the service worksHow a Leng drawing tool is made
It starts with your specification or drawing. We engineer the geometry with 3D CAD and calculation software, grind the bore on internal grinding machines and calibrate it. The surface finish is still largely achieved by hand polishing with diamond compounds — work that demands care and experience.
Before delivery, every tool is checked with modern measuring equipment; an inspection report is available on request. More: Manufacturing and Quality.
Ground, calibrated and hand-polished — every bore a promise of precision.
Knowledge from the die shop
Know-how no catalogue carries
Making drawing tools since 1948 builds knowledge we share in our Knowledge section: die geometry with drawing angle and bearing length, the right grit sequence for polishing — and when regrinding pays off.
- Understanding drawing die geometry — with interactive cross-section
- How to polish drawing dies
- Reconditioning or replacement?
Request a quote
Describe material, dimensions and quantity — or upload your drawing (PDF, DXF, STEP). We reply promptly, in English.
Request a quote +49 2777 7608Direct line to the manufacturer — Fritz Leng Hartmetall Ziehwerkzeuge, Herborn-Schönbach, Germany