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Facility Hand Tools Wrenches Open End Wrench Sets Proto PTO577-3000HB

Proto Protoblack™ Open End Wrench Sets

Item # PTO 577-3000HB by Proto (Mfg. Part # 577-3000HB, UPC # 662679090302)


  • Anti-Slip Design (ASD) wrench has a locking groove prevents slippage and knuckle injury
  • Unique arc design increases surface contact by 400%
  • Increased torque applied to fastener with fewer rounded edges

  • Opening Type : Open/Open

  • Head Angle : 15°

  • Includes : (1) 5/16 x 3/8 in, (1) 7/16 x 1/2 in, (1) 9/16 x 5/8 in, (1) 11/16 x 3/4 in, (1) 13/16 x 7/8 in, (1) 15/16 x 1 in, (1) 1-1/16 x 1-1/8 in, (1) 1-1/4 x 1-5/16 in, (1) 1-3/8 x 1-7/16 in, (1) 1-1/2 x 1-5/8 in, Tool Roll

  • Material : Forged Alloy Steel

  • Finish : Black Oxide

  • Handle Type : Flat

  • Measuring System : Inch

  • Weight : 12.62 lb

PTO577-3000HB - ProtoProtoblack™ Open End Wrench Sets
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Retail Price: $489.47
BettyMills Discount Price: $362.57 Per Set
Order 3+ and Save an Extra $10.88 Per Set
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