MICROMETER CLICK WRENCH
The M3 series comprises the collection of wrenches with 1/2" square drives.

Model Drive Type Capacity Graduations Ratchet Kit M4DR400F Detachable ratchet 150-400 lb. ft. 1.25 lb. ft. R44AR-RK Specifications: 4% accuracy to full scale in both the clockwise and counter-clockwise directions Effective Length at 20% of Full Scale: 22.00" Effective Length at Full Scale: 21.00" Maximum Overall Length: 24.75" Minimum Overall Length: 23.75" Weight: 4.1 lbs. (w/plastic case): 5.7 lbs. Finish: Nickel / Chrome Meets or Exceeds the following Specifications: GGG-W-686C, ANSI B107.14M Model Drive Type Capacity Graduations Ratchet Kit M4DR600F Detachable ratchet 200-600 lb. ft. 2 lb. ft. R44AR-RK Specifications: 4% accuracy to full scale in both the clockwise and counter-clockwise directions Effective Length at 20% of Full Scale: 22.00" Effective Length at Full Scale: 21.00" Maximum Overall Length: 24.75" Minimum Overall Length: 23.75" Weight: 4.1 lbs. (w/plastic case): 5.7 lbs. Finish: Nickel / Chrome Meets or Exceeds the following Specifications: GGG-W-686C, ANSI B107.14M