D50 Valve Port Measuring Tool

No more guesswork or inaccurate measurements. Measures valve ports for replacement. Measure the thickness of cork and felt on all valve instruments. 0 to 8” (203mm), carefully built precision tool. Sharpened tool steel scribe on both marking and adjustable end to mark all the tubing. A knurled lock screw holds measurements precisely. Measurement stays put for as long as needed.

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