Dial Bore Gauge 20-200mmx0.01mm

For accurate measurement of bore diameter, taper and ovality.
 
The measurement is taken by 2 hardened steel anvils (1 fixed, 1 movable) which are automatically centred in the bore by a separate spring loaded guide.
 
The movable anvil is connected to a push rod inside the body of the instrument which operates a dial gauge at the opposite end.
 
A set of different length anvils and in some cases, extension tubes, enable a wide range of bore diameters to be measured.
 
The instrument must be calibrated to a known dimension before use; e.g. with an outside micrometre, setting ring etc.

Specifications:

 
Set Includes:

• Dial Gauge 0-3mm
• Gauge Adaptor
• 20-50mm Measuring Head
• 50-200mm Measuring Head
• 6 Contact Points
• 2 Spacing Washers
• 1 Locknut
• 4 Extension Tubes
• 3 Spanners