HP Tools are designed with the powersports enthusiast in mind to be used on dirt bikes, street bikes, ATVs or anything in need of a good tool. The goal is to build high quality products without the high price tag by cutting out the middle-man markups. Each HP Tools product is quality and durability tested so that you have the confidence to get the job done right every time. Professional spoke wrench kit. Spoke wrench body is manufactured from lightweight aluminum. Each of the eight (8) nipple heads have been machined from tool steel and hardened for long term durability. The HP Tools spoke wrench set includes a wrench and 6.0, 6.2, 6.4, 6.6, 6.8, 6.9, and 7.0 mm heads.