Precise 5 Piece Groovemaster Caliper Attachment Set – Z9505

• Quick and accurate measurements of internal and external diameters of retaining ring grooves, O-ring grooves and undercuts.
• Precision machined from steel, hard chrome plated for extra wear resistance.
• Fits most 6″ vernier, dial and digital calipers with a maximum jaw thickness of .140″.
• Measures internal grooves from .200″ up to the capacity of the calipers.
• Caliper not included.

Includes:
Size 1, 2, 3, 4 & 5 caliper attachments.