Center Gauge
Product Code : LSK-MMTM-10604
Center Gauge (SKU LSK-MMTM-10604), also called a centre gauge or fishtail gauge, is a flat steel gauge for grinding and setting screw-cutting tools and for finding the number of threads per inch. Lathe instructors and trainees in ITI, polytechnic and TVET machining workshops keep one at every lathe. It is one of the lathe accessories Science Lab Supplies supplies from Ambala, India to institutes, colleges, contractors and distributors.
Specifications
The gauge is cut from spring-tempered steel and given a satin chrome finish. Its edges carry etched graduations in 14ths, 20ths, 24ths and 32nds of an inch, which give a quick scale for counting threads per inch, while the notched profile is used when grinding and setting screw-cutting tools.
| Parameter | Value |
|---|---|
| SKU | LSK-MMTM-10604 |
| Material | Spring-tempered steel |
| Finish | Satin chrome |
| Graduations | Etched, in 14ths, 20ths, 24ths and 32nds of an inch |
| Measurement graduations | 1/24 in and 1/32 in |
| Uses | Grinding and setting screw-cutting tools; finding threads per inch |
| Supplied by | Science Lab Supplies, Ambala, India |
Applications and Experiments for the Center Gauge
On a lathe the gauge is held against the work so the threading tool can be set square before a thread is cut, and at the grinder it is used to check the tool point while it is being shaped. The inch scales let trainees count threads per inch on an existing screw.
- ITI Turner and Machinist trades: setting the threading tool before screw-cutting practice.
- Tool-grinding exercises: checking the point of a single-point threading tool.
- Diploma and B.Tech workshop practice: introducing threads per inch and thread-cutting setup.
- TVET machining modules: lathe setup and inspection tasks.
Standard Scope of Supply
The Center Gauge is supplied as a single gauge as described above, ready to use with its etched graduations. Lathes, threading tools and thread gauges are quoted separately, and any optional accessories you request are listed on the quotation.
Packing, MOQ and Lead Time
A quotation can cover one gauge or a set for every lathe in a turning shop. It states the packing, delivery time and price for the number you ask for, and other ITI trade tools such as thread gauges and tool holders can be listed alongside.
Science Lab Supplies holds an Importer-Exporter Code and, as a registered exporter, can ship to buyers in Nigeria, Kenya, Ghana, Ethiopia, Tanzania and Uganda. Science Lab Supplies is registered for GST (GSTIN 06ADEPJ0574F2ZU). The contact page and the enquiry cart both reach our sales desk, and the lab tender page covers tender enquiries.
Frequently Asked Questions
What is a center gauge used for?
It is used when grinding a screw-cutting tool and when setting that tool square to the work on a lathe. Its graduated edges also help to find the number of threads per inch.
What graduations does this gauge have?
The edges carry etched graduations in 14ths, 20ths, 24ths and 32nds of an inch, including 1/24 and 1/32 inch measurement scales.
Who supplies the Center Gauge?
Science Lab Supplies supplies it from Ambala, India, typically together with lathe tooling for ITI, polytechnic and TVET workshops, and to contractors and distributors buying for tenders.
Will the gauge rust in a workshop?
It is made of spring-tempered steel with a satin chrome finish. Wiping off cutting fluid and storing it dry after each session keeps the etched markings readable.
Related Screw-Cutting Equipment
The center gauge belongs to the screw-cutting station of a lathe workshop. These four items cover the machine, the threading tool it sets, and the gauges used to check the result, so the station can be equipped and quoted together.
- Center Lathe Machine — the lathe on which threads are cut.
- Threading Tool Holder — carbide insert holder that the gauge helps set.
- Thread Gauge — checks the finished screw thread.
- Boring Bars with Holder — for internal turning on the same lathe.
View the whole Metal Manufacturing Training Machine range or all TVET lab equipment.
Last updated: 25 September 2026
