Hydro Handle HHPSET 1/2" Chuck Hydro Handle, Quick Release Water Fittings, Recoil Hose, Hand Pump, Bottle with Carrying Pouch in a Storage Box. Having the right tool for the job is essential to get the results expected by professional tradesmen. The Hydro-Handle Professional kit is the right tool for drilling holes in hard material. The Hydro-Handle Professional kit comes complete with all Hydro-Handle components which allow full control and stability with a one-of-a-kind Hydro-Handle portable lubrication system. With the Hydro-Handle Professional kit you will be able to turn your your cordless drill (or corded, but please use GFCI for shock protection) into a portable center water feed drill. The 8mm pilot can be use in conjunction with any 5/8-11 threaded bit to increase stability and precision. The Hydro-Handle uses an innovative arbor system that allows the user to attach common electroplated drill bits with an 8mm shank as well as any 5/8-11 threaded tooling including core drill bits, backer pads for diamond polishing pads, diamond profile wheels for bullnosing, and diamond cup wheels for aggressive grinding. Water is controlled and fed directly through the center of the attachment via the HYDRO HANDLE for optimum cooling. The Hydro-Handle adds an extra point of support close to the attachment enabling you to hold the drill more securely for more leverage, control and convenience.