SPI Acme Screw Pitch Gage

Features:

• For grinding and setting tolls when cutting Acme threads.
• Angles and edges hardened and ground.
• Steel Acme Thread Screw Checker 
• Pitches included: 1, 1-1/3, 1-1/2, 1-3/4, 2, 2-1/2, 3, 4, 5, 6, 7, 8, 9, and 10.