Keson D18646 Diameter Tape Measure 72 in 1/64 in

Product Description

The KESON D18646 is a diameter tape measure designed for taking precise circumference-based diameter readings on round objects such as pipe, conduit, tanks, and structural members. The tape reads directly in diameter rather than circumference, eliminating the need for manual conversion. It measures up to 72 inches and graduates at 1/64 inch for fine resolution. The blade is made from lacquer-coated steel for durability and corrosion resistance. At 0.15 pounds, it is a lightweight tool suited for field use by plumbers, pipefitters, HVAC technicians, and mechanical contractors who regularly need accurate outside diameter measurements on cylindrical components.

This diameter tape is well suited for residential and commercial trade applications where outside diameter must be confirmed quickly without a separate calculation step. Typical use cases include sizing pipe for fittings, verifying tank or vessel dimensions, and checking conduit or duct diameter during rough-in or inspection work. The 1/4 inch blade width keeps the tape seated snugly around curved surfaces for a stable, repeatable reading.

Key Features

• Reads directly in diameter — no circumference-to-diameter conversion needed
• 72 inch maximum measurement range
• 1/64 inch graduation for precise diameter readings
• Lacquer-coated steel blade resists corrosion and abrasion
• 1/4 inch blade width conforms closely to round surfaces
• Lightweight at 0.15 pounds for comfortable field use

Compatibility

Designed as a general-purpose diameter tape for use on cylindrical workpieces including pipe, conduit, tanks, and round structural members within its 72 inch maximum measurement range.

Installation Notes

Diameter tapes require no installation, but correct use technique matters for accuracy. Wrap the tape snugly and squarely around the circumference of the object so the blade lies flat with no twisting or overlap. Read the diameter value directly at the point where the tape crosses the zero index. Inspect the blade periodically for kinks or damage that could affect measurement accuracy.