Figure 6-36.  Navy end tab. Figure 6-38.  3-cord cotton thread–waxed. Figure 6-39.  Tape measure. Figure 6-37.  Waxed nylon “supertack.” freeing both hands to pin the container. This strap can be built  by the rigger.  [Figure 6-40] 3-cord cotton thread–waxed—used for hand tacking and  break tacking on the risers and connector links of emergency  parachutes. Its tensile strength is 16 pounds. The color is  usually natural.  [Figure 6-38] Tape measure—used for general measurement of items  such as suspension lines and bridles. A good quality tape  measure at least 25 feet long is necessary. A quality fabric  tape measure is also necessary. If possible, get one with dual  measurements (English/metric).  [Figure 6-39] Pony clamps—used for clamping material to hold it as a third  hand. Also used as a packing assistant when packing square  reserves. These do come in handy, although not used by all  riggers.  [Figure 6-41] 6-inch adjustable wrench—used for tightening Rapide $^{®}$ links  and other jobs. A good adjustable wrench serves in place of  Shoulder strap hook—packing assist device used to apply  tension to the pull-up cord using upper-body strength thereby  6-10