Two body families
GT3 and GT12 use different listed body and connection dimensions.
Catalog reference view. final supplied configuration confirmed by quotation.
GT3 / GT12
GT3 and GT12 Tapping Chucks
Overview
Interchangeable tapping chucks covering M3 through M24 tap sizes.
AvailabilityConfirm before order
Lead timeQuote based
Product details
GT3 and GT12 tapping chucks are the interchangeable tool-side components listed for the GT tapping system. The catalog groups tap thread sizes and shank dimensions within two body families. Match the chuck to its holder and to the physical tap shank, because a thread designation alone does not completely define the connection.
Tap-size matching
Select the required thread size and confirm its shank and driving-end geometry.
System replacement
Use a confirmed GT holder code when replacing or extending an existing chuck assortment.
Specifications & model range
Dimensions are in millimeters unless otherwise stated. Confirm the final drawing before ordering.
- Tap size range
- M3-M24
- Holder bodies
- GT3 and GT12
- Catalog length L1
- 56 or 82 mm
2 catalog rows
| Series | Tap size M | Tap shank d | D | D1 | L | L1 |
|---|---|---|---|---|---|---|
| GT3-3 to GT3-12 | 3/4/5/6/8/10/12 | 3.25-9.1 | 38 | 19 | 33.7 | 56 |
| GT12-12 to GT12-24 | 12/14/16/18/20/22/24 | 9.1-18.1 | 58 | 30 | 51.7 | 82 |
No matching model in this table. Try a shorter code or send us your drawing.
Ranges and slash-separated values describe catalog families, not every possible combination. Confirm the complete model and drawing before ordering.
Shipping photos & packing
Agree the packing method and photo requirements when confirming your order.
Order-specific photo confirmation
Verified dispatch photos for this series have not been uploaded. Request photographs of your selected model, protective packing and shipping label when confirming your order.
Discuss packing requirementsPhotos to confirm before dispatch
Use this checklist to agree what should be documented for your selected model.
- GT3 and GT12 items separated and labeled
- Tap connection and holder interface protected
- Each chuck checked against the requested tap-size list
Stock, dispatch date and shipping method are confirmed with the quotation. Website images are not live inventory evidence.
Application scenarios
Typical selection contexts for this series, not customer project claims. Confirm machine compatibility and cutting conditions for your setup.
Tapping changeovers
Preparing chucks for a sequence of different tap sizes.
GT system maintenance
Replacing a known chuck without changing the complete holder assembly.
Tap-holder assortments
Building a size schedule that distinguishes GT3 from GT12 components.
Related product series
Compare alternative interfaces and complementary tooling. A related series is not automatically interchangeable.
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Models and specifications
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Telescopic Quick-Change Tap Holder Sets
Models and specificationsAre GT3 and GT12 interchangeable in the same holder?
Do not interchange them without confirmation. The catalog lists different body and holder-connection dimensions.
Why does M12 appear in both families?
The source lists an overlap at that tap size. Select the version that matches the holder and actual tap dimensions.
Do these chucks include a verified torque-limiting feature?
No such feature is established in the supplied table. Request specific confirmation if required.
Can I select a chuck using only a tap's nominal thread size?
Provide the physical shank and driving-end dimensions too; taps with the same thread designation may need different connection checks.