External thread tooling
This family forms the external thread rather than the internal thread made by a tap.
Supplier reference photo: round threading dies. Sample markings are illustrative; FuRui specification confirmed by quotation.
Taps & Threading Tools
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ROUND DIE SERIES
Round Threading Dies
Overview
Round threading dies for external threads. Order information includes thread diameter, pitch and tolerance, plus die outside diameter, thickness and workpiece material.
AvailabilityConfirm before order
Lead timeQuote based
Product description
Round threading dies are intended for external threads and are specified by both the required thread and the die body's mounting dimensions. A complete inquiry should include the thread designation, outside diameter and thickness needed by the holder. State the workpiece material and operating method so the proposed tool can be reviewed for the actual application.
Die body dimensions
Confirm outside diameter and thickness against the intended die holder.
Thread definition
Include pitch, direction and tolerance alongside the nominal thread diameter.
Thread size and die-body size answer different questions
The thread designation defines the external thread to be cut. The die outside diameter and thickness define how the tool fits its holder. A matching thread label alone does not establish a holder-compatible replacement.
For a useful replacement request, photograph the marking and both faces, then measure body diameter and thickness. Include the retaining-hole arrangement if the existing holder must be reused. Keep the thread standard, pitch, hand and tolerance separate from those mounting dimensions.
For an internal thread instead, start with machine and hand taps. If the drawing uses a special tyre-valve thread code, compare the valve-thread tooling catalog rather than assuming a general metric designation.
Check the starting face before cutting a replacement thread
Do not assume that both faces of every round die are cutting entry faces. The lead-in and backing geometry depend on the design. Also distinguish a solid die from a split adjustable die; an adjustment screw is not a way to turn one nominal thread size into another.
When diagnosing a poor thread, record the blank diameter, entry chamfer, holder alignment, material and the actual gauge result. These checks are more useful than reporting only that a mating nut feels tight. Follow the cutting direction and operating guidance supplied for the selected die.
Send a round-die replacement inquiry with the thread drawing and holder measurements.
Design background: YAMAWA explains front/back geometry and solid versus adjustable dies. These references do not specify the construction of every FuRui die.
Specification requirements
Dimensions are in millimeters unless otherwise stated. Confirm the final drawing before ordering.
Drawing confirmation requiredThis page provides a family/model index or an inquiry checklist, not a complete manufacturing drawing. Request the selected model dimensions, fit and required inspection criteria before ordering.
- Tool type
- Round threading die
- Thread
- Standard or special
- Dimensions
- Confirm by designation or drawing
| Required order data | Accepted information |
|---|---|
| Thread designation | Diameter, pitch and tolerance |
| Die body | Outside diameter and thickness |
| Application | Workpiece material |
Application scenarios
Typical selection contexts for this series, not customer project claims. Confirm machine compatibility and cutting conditions for your setup.
External thread production
Cutting a drawing-specified thread on a suitable shaft or rod feature.
Workshop thread repair
Selecting a die for a documented maintenance threading requirement.
Distributor size schedules
Organizing die orders by thread designation and holder-compatible body size.
Inspection & order review
Specify the dimensions, tolerances and records your order requires. Acceptance criteria must be agreed for the selected model.
Drawing information to provide
- Thread designation
- Die body
- Application
Check the drawing reference faces and units. A catalog size alone does not define a tolerance or an inspection method.
Records to request
List any required dimensional report, material document or model identification photograph in your inquiry. Confirm availability and scope in the quotation.
For a drawing-based part, include the drawing revision and identify the critical dimensions. Website photographs are not inspection reports.
Packaging & delivery
Agree the packing method and photo requirements when confirming your order.
Order-specific photo confirmation
No verified shipment photographs for this series are currently published. Include selected-model, protective-packing and outer-label photos in your order requirements.
Discuss packing requirementsPhotos to confirm before dispatch
Use this checklist to agree what should be documented for your selected model.
- Thread and body-size labels distinguish each die
- Cutting teeth and die faces protected
- Assortment count matched to the size schedule
Stock, dispatch date and shipping method are confirmed with the quotation. Website images are not live inventory evidence.
Technical resources
Product specifications
Keep a copy of the current series information for comparison. Confirm the final model and drawing before placing an order.
View specificationsSpecify a threading tool
Prepare the thread designation, workpiece drawing and tool connection.
Read the guideRelated selection information
Browse the existing tooling guides and compare product families before selecting a model.
Browse technical resourcesRelated product series
Compare alternative interfaces and complementary tooling. A related series is not automatically interchangeable.
STANDARD TAP SERIES
Machine and Hand Taps
Models and specifications
COARSE THREAD
Metric Coarse Thread Taps
Models and specifications
QG50-QG150
QG Precision Machine Vises
Models and specificationsIs a round die used for an internal thread?
This family is for external threading. Internal-thread tooling is listed under taps.
Does thread size determine the die body size?
No. The thread designation describes the thread being cut; die outside diameter and thickness describe holder fit. Confirm both, plus the retaining arrangement, when replacing a die in an existing holder.
Can I order by a sample nut alone?
The nut can help identify the mating requirement, but provide the exact thread standard, pitch and tolerance where possible.
Is left-hand threading included automatically?
No. State thread direction explicitly in the order requirement.