Heavy-Duty Hydraulic Punch Set for Aluminum, Brass & Stainless Steel Projects. Transform your DIY projects with our comprehensive hydraulic punch kit, meticulously designed for aluminum, brass, and stainless steel applications. This kit is your all-in-one solution for a range of projects. Includes hydraulic punch, 10 punches and dies, step drill bit, sturdy carrying case, 2 draw studs, piston shaft, spacer, and sealing rings. Punch sizes: conduit fittings from 1/2" to 4". Maximum punching thickness for soft carbon steel plate: 0.1" (10 gauge); for stainless steel plate: 0.08" (14 ...