SPI 31-471-6 Thread Pitch Master Set, ID

SPI, 31-471-6, Thread Pitch Master Set, ID Attachments and Inserts for Calipers

Features:

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

Set Includes:

• The I.D. Caliper attachment set includes 4 pairs of I.D. inserts to measure threads from 42 to 6.5 TPI with a minimum 5/8" minor internal diameter, and all 60° metric internal threads with a minimum 16 mm minor diameter and a pitch from 0,6 mm to 4,0 mm.