Dude! Go to Home Depot and get the brass snap clip in the hardware section. Tie it off with a nylon coard small enough that you can cut it eaisly if your stuff gets snagged on something (i.e. 1/8" to 3/16").
Some of the hard core divers here will tell you to only use snap bolts ( UMX Small Size Bolt Snaps with Round Slide Bar - Schematic Drawing ) because they are the least likely to catch on something. Thats fine if you dive wrecks that are covered in fishing line and fishing nets all the time. Otherwise use a cheep push gate snap clip ( UMX Easy Push Gate Marine Rope Snap Hooks - Schematic Drawing ) made of brass. rinse it after evey dive and you'll have no problems.
Another thing I do is I splice an eye in the lanyard through the hole in the tool (like the hole in the handle of a dive light) and through the snap clip so the snap clip is attached to the tool. On the other end of the lanyard I splice an eye large enough to fit the tool through. Then you can attach the tool to your rig by slipping the free end of the lanyard through a "D" ring and threading the tool through it thus capturing the D ring in the doubled over lanyard. The snap clip is used to clip the tool off so it is not dangeling when your not using it and the lanyard keeps you from losing it.
Some of the hard core divers here will tell you to only use snap bolts ( UMX Small Size Bolt Snaps with Round Slide Bar - Schematic Drawing ) because they are the least likely to catch on something. Thats fine if you dive wrecks that are covered in fishing line and fishing nets all the time. Otherwise use a cheep push gate snap clip ( UMX Easy Push Gate Marine Rope Snap Hooks - Schematic Drawing ) made of brass. rinse it after evey dive and you'll have no problems.
Another thing I do is I splice an eye in the lanyard through the hole in the tool (like the hole in the handle of a dive light) and through the snap clip so the snap clip is attached to the tool. On the other end of the lanyard I splice an eye large enough to fit the tool through. Then you can attach the tool to your rig by slipping the free end of the lanyard through a "D" ring and threading the tool through it thus capturing the D ring in the doubled over lanyard. The snap clip is used to clip the tool off so it is not dangeling when your not using it and the lanyard keeps you from losing it.