This is 5pcs pack tips that can replace weller ST tips,not OEM but of high quality. Compatible with WP25, WP30, WP35, WLC100 SP40L / SP40N series soldering iron. Consist of a special sharp conical tip, size 0.2mm. Knife tip size 4mm. bevel tip size 2.4mm. chisel tip size 2.4mm . ST7 tip size 0.8mm. with 5 different shapes and sizes,this speical customized tip set can achieve almost any soldering application you need. With WELLER ST7 For sample ,We made other models ! In order to adapt to different welding spot Features • Made of high quality material,good replacement tips for weller ST7 tip • Precision ground copper tips are plated with iron, nickel and chromium • Will fit the SP40L / SP40N series irons as well as the WP25, WP30, WP35, WLC100 series tools • Tinned with Lead Free alloy UPC:713839725319