Limit plug gauges with fit H7.
Gauge bodies made of first-class gauge steel, hardened, stress-relieved, ground, and lapped. The go sides of these working gauges are manufactured with a wear allowance according to DIN 7164.

• Tolerances and dimensions according to DIN 1938-1.
• labeled with the actual size
  
• up to 41 mm: go and no-go side on one handle (DIN 2240, Part 1 Form R).
• from 42 mm: divided into two parts (good/reject)
• Committee side marked in red

Application:

Limit plug gauges consist of a go side and a no-go side (marked by a red ring).
The good side must slide into the hole of the workpiece under its own weight.
The reject side may only beak at the hole.
A reference temperature of 20°C applies to workpieces and gauges.