These three micrometers are all extremely useful for measuring the wall thickness of parts such as solid and split bearings, tubing, sleeves, collars, rings, various cylinders, and also measuring from the inside of a hole to an edge. All three have a rounded anvil which contacts the inside curved surface and a flat spindle for contacting the outside of the work, thus producing single point contact.

This permits accurate gaging of curved surface thickness in thousandths of an inch or hundredths of a millimeter.

Capacity

• The No. 576 can get into holes as small as 5/16 of an inch (8 mm) and measure up to 1/2 inch (13 mm)
  
• The No. 577 can get into holes as small as 3/8 of an inch (9.5 mm) and measure up to 1 inch (25 mm)
  
• The No. 211 can get into holes as small as 5/8 of an inch (16 mm) and measure up to 1 inch (25 mm)

Readability Features

• Starrett satin chrome finish – no glare – resists rust
  
• Advanced sleeve design with staggered lines and distinct figures for precise and easy readability
  
• Convenient decimal equivalents on Inch tools

Ease-of-Handling Features

• Balanced frame and thimble design insure easy handling and better readability
  
• Gracefully designed tapered frame for use in narrow slots and tight places

Accuracy and Long-Life Features

• Rigid one-piece steel frames
  
• Extremely hard and stable one-piece spindle (the heart of our accuracy)
  
• Micro-lapped measuring face
  
• Quick and easy adjustment
  
• Starrett workmanship
  

Micrometers with rounded anvils
No. 576, 576M Series
Range: 0-1/2" (0-13 mm)
No. 577, 577M Series
Range: 0-1" (0-25 mm)
No. 211
Range: 0-1"

J.W. Donchin Co.
Ph: 773-261-2182 • Fax: 773-261-2867 • Email: sales@jwdonchin.com