3Pcs Direct Replacement for JN1601 - Engineered as a precision compatible punch & die set to restore performance for 16-gauge nibbler (Model JN1601), ensuring seamless integration with factory specifications. High-Quality Steel Construction - from hardened alloy steel to withstand rigorous sheet metal cutting tasks, delivering 3x longer lifespan compared to standard nibbler blades and punch tools. Quick-Install Design - No tools required. Compatible with most electric drill attachments, enabling fast punch replacement in under 2 minutes for continuous metalworking projects. Perfect for renovating metal roofs, trimming automotive body panels, and fabricating ductwork systems. Effortlessly handles continuous cutting tasks in workshops and construction sites. Rigorously tested with for 's 16-gauge nibbler (model JN1601) for seamless blade alignment and punch stability. Color:As Shown Material:Metal Package Contents: 3 * for Parts-A-83951 Only above package content, other products are not included. Note: Light reflection and different displays may cause color of item in picture a little different from real thing. The measurement allowed error is +/- 1-3cm.