Perfect Pi Diameter Circumference Tape Measure DCT120 – Imperial & Metric, 1/2 in x 12 ft (3.5 m)

Compact, dual-scale measuring tool for cylinders

The Perfect Pi Diameter Circumference Tape Measure DCT120 is pocket-sized yet capable of precise readings for both diameter and circumference. With a 1/2-inch by 12-foot (3.5 m) tape, it blends imperial and metric measurement in a single tool, ideal for quick checks of pipes, tree limbs, and fittings.

What makes it fit for the job

• Outside diameter (OD) reading on the underside, accurate to 1/100 inch, and standard inches on the top side to 1/16 inch.
• Metric graduations continue on both sides, down to millimeters for fine increments.
• Reflective, high-contrast numerals stay legible in bright sun or dim shop lighting.
• Magnetic case and an aluminum rotating wheel brake enable secure placement and controlled retraction.

Smart design features for real-world use

• Pocket-sized and flexible, with retractable steel tape that folds neatly for storage.
• Strong magnet on the case lets you affix to metal surfaces, freeing both hands for other tasks.
• Durable construction supports routine DIY projects as well as professional settings.

Practical use scenarios

Measure pipe diameters and pipe fittings for compatibility checks, or wrap the tape around tree trunks and branches to estimate circumference in the field. The dual scales help you switch between reading modes on the fly, without fumbling for separate tools.

Keep it handy

Because it combines compact size with robust readability, the DCT120 is well suited for tool belts, pockets, or glove compartments. It’s a reliable companion where cylindrical measurements are common.