SPI 3-Point Hole Mike Set, 3 pc. 0.275 – 0.500″

Precise Direct Measurement of Bore Diameters

Features:

• Models up to and including 0.24″ have two measuring points
• Models 0.275″ and above have three measuring points
• Calibrated setting rings on sizes up to 4″ included
• Self-centering contact points for accurate measurements
• Contact points allow measurements near to the bottom of a blind bore or in a deep bore using additional extensions
• Ratchet thimble
• Carbide measuring surfaces
• Short Form Certificate of Calibration included on sizes up to 4″
• Furnished in a fitted case
• 2 year warranty

Set includes: 3 setting rings, 4″ extension rod & spanner wrench in fitted case

See all SPI 2 & 3-Point Hole Mikes and Sets