Dial Bore Gauge 18-35mmx0.01mm

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:

Range: 18-35mm
Depth: 140mm
Resolution: 0.01mm
Accuracy: 15μm
 
Set Includes:

• Dial Gauge 0-3mm
• Measuring Head with Gauge Clamp
• 7 Contact Points
• 1 Spacing Washer
• 1 Locknut
• Spanner