LG 6002 | Lead Gages

2-point internal lead gage, Number of contact points: 2, Thread Length Range: ½” – 4” (0 mm – 101.6 mm), Internal, Minimum Bore: 1.450”, Indicator Travel: .100", Indicator Resolution: .0005”, Contact Point Spacing: .200”

Gagemaker’s lead gage, Model LG-6002, uses two contact points to inspect thread lead. One fixed contact point at the rear of the gage and one moveable contact point at the front of the gage provide complete stability when taking thread lead measurements.  
Before inspecting parts, the lead gage must be preset to a nominal predetermined dimension, using a lead gage setting standard. These setting standards are manufactured according to ANSI and API specifications with grooves ground at precise increments. Lead standards are available for ACME, Stub ACME, UN and API threads.

GAGEMAKER LG-6002: Lead Gage, Internal / External
Two Point, 1/2" - 4" Thread Lead Range, 0.193" Contact Point Spacing, 0.0005 Indicator