Proto, J445/16S2, Punch, 5/16 in, S2 Steel, Black Oxide Finish, 5.000 in

Crafted for strength and longevity, this punch features a one-piece design that ensures durability in demanding applications. Made from S2 steel and specially heat-treated, it excels at sheet metal work, making it ideal for scribing and punching starting holes for screws. The tool’s modified parabolic striking end is designed to minimize mushrooming and chipping, while its reverse taper helps prevent binding during use. To enhance user convenience, a polished identification panel marks the tool size and number clearly, complemented by a black oxide finish that resists rust and corrosion, ultimately extending the tool’s life and performance.

Features

• One-piece design for strength and durability
• Made from S2 steel and specially heat-treated for greater strength and durability
• Application: sheet metal work for scribing and for punching starting holes for sheet metal screws
• A polished identification panel on one of the flats is marked with the tool number and size in a black inlay
• Reverse taper to help prevent binding
• Modified parabolic striking end to help reduce mushrooming and chipping
• Black oxide finish to help prevent rust corrosion; extending tool life and performance

• Length: 5.000 in
• Size: 5/16 in
• Height: 0.200 in
• Width: 0.200 in
• Weight: 0.100 lbs
• Material: S2 Steel
• Finish: Black Oxide
• Country of Origin: United States