Proto TorquePlus Combination Wrench Set, Anti-Slip Design, Metric System of Measurement, 7 to 21 mm, 15 Piece, For Use With: 4, 6 and 12 Point Fastener, 12 Point, Box/Open End Drive, Alloy Steel, Satin

ITEM FEATURES:

• Satin finish provides corrosion resistance and a slip resistant grip
• 12 point box end allows for fine indexing, helping to improve speed and access
• Anti-slip design (ASD) open end
• Metric sizes 9 mm and smaller do not have ASD feature
• Box ends incorporate the TorquePlus system
• Locking groove to help prevent slippage
• Arched surface which spreads the force over a 400% larger contact area to help prolong life
• No ribs or serrations to damage fasteners - boxed end TorquePlus
• Allows upto 15% more torque to be applied to the fastener
• Reduces the risk of fastener rounding
• Provides a better grip on worn, rounded fasteners
• Double nickel strike for rust resistance and prolonged life