Proto J3800A Flare Nut Wrench Set, Alloy Steel, Black Oxide, Range of Head Sizes 3/8 inch to 3/4 inch

Features

• These flare nut wrench sets have a gear mechanism on the single end head that allows the wrench to rotate freely in one direction without removing the wrench head from the fastener and repositioning the wrench. 
• The ratcheting wrench head allows a line or other obstruction to pass through it, then closes for full contact around the fastener. 
• The opposite end allows for a more secure grip on the full length of the handle than a double-end flare nut wrench. 
• The 12-pt. the design has additional grooves that make it easier to connect with the head of the fastener and connect at more angles for better accessibility compared to a 6-pt. wrench. 
• These single-end wrenches come in SAE (inch) sizes.