1B-17A box end wrench set

Specifications

• Ac. acc. to DIN 3113, Form B, ISO 3318, ISO 7738
  
• Vanadium steel 31CrV3, chrome plated
  
• Carefully forged and professionally machined
  
• Ring: 10° offset from the shaft, with UD profile for smooth force transmission
  
• Overload indicated by deformation
  
• The offset ring ensures better grip on deeply seated or inserted nuts or bolts
  
• High-grade industrial quality for the toughest continuous use
  
• Dull appearance due to matte chrome
  
• Jaw: Precision ground to the exact nominal size for ideal contact areas
  
• Open end with fine ribs for increased strength ensures maximum torque
  
• 1/4”, 5/16”, 3/8”, 7/16”, 1/2”, 9/16”, 5/8”, 11/16”, 3/4”, 13/16”, 7/8”, 15/16”, 1.” 1.1/16”, 1.1/8”, 1.3/16” & 1.1/4”