SPI 3-Point Hole-Mike Inside Micrometer, 8.000 – 9.000″
10-757-3

8 to 9″, 5.51″ Gage Depth, Mechanical Inside Hole Micrometer

0.0002″ Graduation, 0.0008″ Accuracy, Ratchet Stop Thimble

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
• In lieu of Setting Rings, Setting Frames are provided for diameter ranges above 7″ dia.

Specifications:

Item Number 10-757-3 Type Hole Minimum Measurement (Decimal Inch) 8.0000 Maximum Measurement (Decimal Inch) 9.0000 Graduation (Decimal Inch) 0.0002 Thimble Type Ratchet Stop Accuracy (Decimal Inch) 0.000800 Gage Depth (Decimal Inch) 5.5100 Number of Contact Points 3 Number of Extension Rods 0 Number of Setting Rings Included 0 Setting Ring Diameter (Decimal Inch) 9.0000 Digital Counter No

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