HSN code directory
HSN Code 9017: Drawing, marking-out or mathematical calculating instruments
Drawing, marking-out or mathematical calculating instruments (for example, drafting machines, pantographs, protractors, drawing sets, slide rules, disc calculators); instruments for measuring length for use in the hand (for example, measuring rods and tapes, micrometers, callipers), not specified or included elsewhere in this chapter
All 8-digit HSN codes under this heading
| HSN code | Description |
|---|---|
| 90171000 | Drafting tables and machines, whether or not automatic |
| 90172010 | Other drawing, marking-out or mathematical calculating instruments: drawing and marking-out instruments |
| 90172020 | Other drawing, marking-out or mathematical calculating instruments: mathematical calculating instruments |
| 90172030 | Other drawing, marking-out or mathematical calculating instruments: pantograph |
| 90172090 | Other drawing, marking-out or mathematical calculating instruments: other |
| 90173010 | Micrometers, calipers and gauges: micro-meters and calipers |
| 90173021 | Micrometers, calipers and gauges: - gauges: plug |
| 90173022 | Micrometers, calipers and gauges: - gauges: ring |
| 90173023 | Micrometers, calipers and gauges: - gauges: slip |
| 90173029 | Micrometers, calipers and gauges: - gauges: other |
| 90178010 | Other instruments: measuring rods and tapes and divided scales |
| 90178090 | Other instruments: other |
| 90179000 | Parts and accessories |
GST rate guide for this chapter
Medical, surgical and dental instruments and spectacles were reduced to 5% from 22 September 2025. Most other optical, photographic and measuring instruments are taxed at 18%.
Browse the full HSN code list or search any HSN or SAC code.
GST rates depend on the exact description of the goods in the rate schedules, not only on the HSN code. Some goods under the same heading are taxed at different rates, and conditions or exemptions can apply. Confirm the rate for your product before you raise invoices.
Frequently asked questions
How many digits of the HSN code must I show on a GST invoice?
Businesses with aggregate turnover of up to ₹5 crore in the previous year must show at least a 4-digit HSN code on B2B invoices. Businesses with turnover above ₹5 crore must show a 6-digit code on all invoices. The full 8-digit code is used for imports and exports.
What is the difference between an HSN heading and an 8-digit HSN code?
The first 2 digits are the chapter, 4 digits are the heading and 6 digits are the subheading under the international Harmonized System. India adds 2 more digits for a more precise tariff item, giving the 8-digit code used in customs and GST.
What happens if I use the wrong HSN code?
A wrong HSN code can lead to tax being charged at the wrong rate, mismatches in GSTR-1 and the HSN summary, and notices with interest and penalty. If you are unsure about classification, a CA can review it before you file.
Need help with classification or GST rates? GST registration and return filing or book a free consultation with our CA-led team.