SPI 3-Point Hole Mike, 3.500 - 4.000"

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

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