SPI Half Base Depth Micrometers

Description

SPI Half Base Depth Micrometers

Half base permits measuring depths of holes and slots close to shoulders and in between obstructions. Quick reading graduations.

Features:

• Graduations: 0.001″
• Accuracy: 0.0002″
• Base: 0.645″ wide x 2.25″ long
• Ratchet stop
• Flat end rods
• Torque wrench included
• Short Form Certificate of Calibration included
• Furnished in fitted case
• 2 year warranty

Specifications:

Item Number 17-920-0 17-921-8 Minimum Measurement (Decimal Inch) 0.00 0.00 Maximum Measurement (Decimal Inch) 4.00 6.00 Base Length (Inch) 2-1/4″ 2-1/4″ Base Length (Decimal Inch) 2.25 2.25 Features None None Rod Type Rotating Rotating Number of Rods 4 6 Thimble Type Ratchet Stop Ratchet Stop Graduation (Decimal Inch) 0.001 0.001 Rod Diameter (mm) 4.5 4.5 Rod Diameter (Decimal Inch) 0.176 0.176 Accuracy (Decimal Inch) 0.0002 0.0002 Measuring Face Material Hardened Steel Hardened Steel Traceability Certification Included NIST NIST