Trusted by aerospace, defense, and manufacturing leaders worldwide for mission-critical accuracy.
When precision matters most, engineers and quality control professionals turn to Pi Tape. For 80 years, we’ve delivered the gold standard in diameter measurement solutions—from aerospace components to pipeline infrastructure. Our precision measuring tapes provide the accuracy you need, backed by the reliability you demand.
Accuracy to ±0.001" (0.03mm) for applications where measurement errors aren't an option. Trusted in aerospace, defense, and safety-critical industries.
80 years of engineering excellence. From the Saturn program to today's advanced manufacturing, Pi Tape has been there when precision counts.
Outside diameter, inside diameter, O-ring, circumference, and digital measurement tools. Stock and custom solutions for diameters from 0.25" to 200+ feet.
A2LA accredited calibration services ensure your measurements meet the most stringent quality standards.
Across aerospace, energy, manufacturing, and defense, Pi Tape provides the accuracy and durability required for operations where quality and compliance are non-negotiable.
Built for speed, accuracy, and consistency, Pi Tape tools deliver the trusted measurements professionals rely on every day. Discover OD, ID, O-ring, and digital solutions crafted for critical applications.
Measure cylindrical objects with unmatched accuracy. Available in 1095 spring steel, 716 stainless steel, and high-visibility Blue Easy to Read. Imperial and metric options.
Precision internal measurement for pipes, cylinders, and bores. Designed for accurate readings in confined spaces.
Specialized design for soft-walled parts. Prevents compression errors when measuring O-rings, seals, and flexible components
Easy-to-read digital displays with instant metric-to-imperial conversion. Ideal for fast-paced production environments.
±0.001″ to ±0.003″ depending on range
1095 spring steel, 716 stainless steel, specialized coatings
0.25″ to 200+ feet diameter capability
NIST-traceable, ISO/IEC 17025 accredited
Corrosion-resistant, field-proven in extreme conditions
When measurement errors aren’t an option, Pi Tape delivers. Trusted in aerospace, industrial, and field applications, our tools make precision possible where it counts most.
Whether you need stock precision measuring tapes or custom solutions for unique applications, our team is ready to help you find the perfect measurement tool.
Phone: (903) 266-9204 | Toll Free: (866) 474-8273
