About
About DSN Enterprises
Coimbatore-based manufacturer of precision plain, thread, and API gauges—with ISO systems, NABL calibration, and engineering support from drawing to dispatch.
Our Story
DSN Enterprises was founded to give Indian manufacturers a dependable source for plain, thread, and API gauges,built to drawing, delivered with certificates, and supported by engineers who understand shop-floor pressure.
From our Coimbatore works we combine CNC machining, precision grinding, and controlled heat treatment with a NABL-aligned calibration laboratory. That integration means fewer hand-offs between production, inspection, and documentation.
Today we supply plants across Tamil Nadu, national OEM and job-shop networks, and export customers who need the same rigour on every shipment.
Our Core Values
Quality
Every gauge is made to agreed tolerances, inspected, and documented,so acceptance on your line matches what we ship.
Innovation
We invest in tooling, process control, and application know-how for demanding thread forms and custom profiles.
Customer Satisfaction
We respond with clear lead times, technical clarity, and gauges that fit your quality plan,not generic catalogue lines.
Integrity
We stand behind our measurements and certificates. If a gauge is not fit for use, we say so before it reaches your floor.
Why Choose DSN Enterprises?
Manufacturing depth, accredited calibration, and engineers who speak your drawing language.
State-of-the-Art Infrastructure
CNC machining, grinding, and lapping under one roof,built for repeatable tolerances on plain and thread gauges.
Expert Team
Gauge designers and metrologists who review drawings, thread data, and feasibility before production starts.
Global Reach
Strong Tamil Nadu coverage from Coimbatore, with pan-India supply and export programmes for OCTG, automotive, and engineering sectors.
Quality Certifications
ISO 9001:2015, NABL calibration, and API 5B / 7-2 licensing where your programme requires licensed OCTG gauging.
Our Manufacturing Process
Controlled steps from material to certificate—so every gauge leaves our works ready for production use.
Material Selection
OHNS (W) and carbide are selected against wear, size, and tolerance class,with mill certificates recorded for critical programmes.
- •Premium grade materials
- •Rigorous material testing
- •Quality-focused sourcing
Precision Manufacturing
CNC turning, grinding, and lapping hold size and form before heat treat,critical for thread and plain gauge function.
- •Advanced CNC machines
- •Skilled craftsmanship
- •Precision grinding
Quality Control
Final inspection, hardness check, and calibration against traceable masters,documented on the certificate you file with QA.
- •Comprehensive inspection
- •SUB-ZERO treatment at -80°C
- •Hardness testing (60 ± 2HRC)
Our Certifications
Accreditations that underpin your audits, customer approvals, and OCTG programmes.
API 5B Certificate
Licensed manufacturing for API 5B thread gauging used on casing, tubing, and line pipe connections in oil and gas supply chains.
NABL Accreditation
NABL accreditation for our calibration laboratory,traceable results accepted in ISO audits and customer source inspections.
API 7-2 Certificate
API 7-2 licensing for rotary shouldered connection gauges used on drill string and heavy-duty threading programmes.
ISO Certification
ISO 9001:2015 quality management covering design, manufacture, calibration, and customer feedback loops.
Ready to Work With Us?
Send your drawing or gauge list—we will confirm scope, lead time, and certificate requirements from Coimbatore.