PITCHMASTER I.D. Insert Pair, 25 – 17 TPI – 31-479-9

• Precision machined and chrome plated caliper and micrometer attachments with precision ground inserts for accurate measurements (sold separately)
• Caliper attachments are designed for use with 6″ dial or electronic calipers with max. jaw thickness of 0.140″
• Ideal for quick checking threads in the machine shop.
• Furnished with instructions.

I.D. Insert Pairs:

Chrome Coated, Caliper Inside and Outside Diameter Attachment

See all PITCHMASTER versions available