The diameter tape measures are our best-selling products. Try a lufkin tape measure if you want to measure the outside diameter of a cylinder, Pipe, or sphere.
OD-TAPE - Outside diameter measuring tape - Pipeline Products
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Buy 16'/5m Compact EDC Tape Measure Online - Defiance Tools
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Check Out Diameter Tape Measure
Best Tape Measures - The Home Depot
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FastCap FlatBack Tape Measure ~ 16' - Square Check
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This simple accessory prevents your tape measure from slipping off the corner while measuring diagonals. The 90 to accommodate any rectangular object. It attaches easily to your tape with a single, powerful rare earth magnet. Use it while assembling drawers for a perfectly square batch. Also great for cases, frames and more. Slot for tape hook measures 1-1/8 wide. Made of durable plastic.
Rockler Square Check for Tape Measures
Check Out Diameter Tape Measure