These wrenches are for 1-3/4" and 2" nuts and fit many Catalinas using a 1" prop shaft and do not have the standard 1-7/8" nuts. To be certain they are correct for your boat, you may want to measure your stuffing box before ordering.
Why our wrenches work:
• Short handles are easy to maneuver in the confines of the small spaces behind the transmission
• Thin wall pattern fits the thin jam nut of the stuffing box
• Trim jaws will fit between the stuffing box and the hull in nearly any boat
• Perfect 30 degree offset allows you to flip the wrench over to shift the position of the handle in the bilge
• Real wrenches don't break when you look at them
Why standard wrenches don't work:
• Crescent wrench: Jaws too large, handle too long, jaws too wide to fit the narrow jam nut
• Standard end wrench: When jaws are large enough for the nut, the handle is much too long to maneuver easily
• Monkey wrench: Jaws are at the wrong angle to fit into the bilge
• Pipe wrench: Jaws much too large and wide, teeth damage the stuffing box
• El Cheapo adjustable packing nut wrench sold by our competitors: Don't have any children aboard when using this wrench as you will be swearing a blue streak when it breaks and you bloody your knuckles against the rough fiberglass in the bilge! 
