Proto 3/32" Starting Punch J501/4S2-SBD

Proto's professional-grade 1/4-inch super-duty starting punch engineered specifically for the high-impact task of initiating the removal or installation of pins and rivets. Forged from premium S2 tool steel and specially heat-treated, this tool is designed to provide the extreme tip hardness and shank resilience required for heavy industrial maintenance and assembly. This punch features a one-piece design to maximize energy transfer and a modified parabolic striking end to significantly reduce mushrooming and chipping. The reverse taper is precision-ground to prevent the tool from binding in the workpiece, while the heavy-duty construction allows it to handle the severe striking forces that standard punches cannot. The shipping weight for this model is approximately 0.11 lbs.
Key Features
Specialized 1/4-inch starting tip provides the heavy-duty force needed to break pins loose or start installations.
Manufactured from high-strength S2 tool steel and heat-treated for maximum durability and impact resistance.
One-piece construction ensures superior structural integrity and consistent energy transfer from strike to tip.
Modified parabolic striking end is engineered to resist mushrooming and chipping after repeated heavy strikes.
Precision-ground reverse taper design helps prevent the punch from binding or getting stuck in the workpiece.
Professional black oxide finish provides industrial-grade protection against rust and environmental corrosion.
Polished identification panel on one of the flats features a black inlay for quick and permanent size recognition.
5/16-inch hex stock diameter offers a secure, ergonomic grip and prevents the tool from rolling away on flat surfaces.