SPI 3-Point Hole-Mike Inside Micrometer Set
0.275 – 0.500″ -10-710-2

0.275 to 1/2″, Carbide, Mechanical Inside Micrometer Set

0.0001″ Graduation, 4″ Extension Rod Length, (2) Setting Rings Included

SET .275-.500″ incl. Extension, Setting Rings and Spanner wrenches in wooden case

Features:

• Three point internal micrometer for precise direct measurement of bore diameters
• Self aligning and self centering
• Carbide measuring anvils
• Suitable to measure to within .050″ of bottom of blind hole, up to 4″ capacity
• Feelers taper toward the back for positive reading of the front edge
• Ratchet stop provides uniform measuring pressure and assures highest reading accuracy

Specifications:

Item Number 10-710-2 Minimum Measurement (Decimal Inch) 0.2750 Maximum Measurement (Decimal Inch) 0.5000 Graduation (Decimal Inch) 0.0001 Accuracy (Decimal Inch) 0.000200 Number of Extension Rods 1 Thimble Type Ratchet Stop Gage Depth (Decimal Inch) 2.0000 Measurement Range (Decimal Inch) 0.275 to 0.500 Maximum Extension Rod Length (Inch) 4 Number of Heads 3 Number of Contact Points 0 Number of Setting Rings Included 2 Setting Ring Diameter (Decimal Inch) 0.3500; 0.5000 Digital Counter No

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