STARRETT Small Hole Gage / Model: 830B

Specifications

• Made in America: Yes
• Range (in): .150-.200''
• Range (mm): 3.8-5.1mm
• Length (in): 2''
• Length (mm): 50mm

• Ideal for accurately measuring small holes, slots, grooves, and recesses
• Precision Ground Radius on each gage provides two-point contact for maximum accuracy
• Used for general work
• Convenient to use in close quarters
• Permits use in shallow holes, slots, and recesses
• Well balanced
• More accurate measurements
• Hardened-ball measuring surface with two-point contact
• Half-ball with a flat bottom
• Gages are only 2'' (50mm) long
• Smooth, sensitive adjustment
• Adjustment of the gage beyond their range is restricted by a safety stop that prevents breakage