They are great! seller +. Fast delivery. I use a Weller WLC100 5W-40W soldering station. They are true to size and come in a wide range. The kit includes: Screwdriver Tips: 1.2mm, 1.6mm, 2.4mm, 3.2mm, 4.2mm. Tapered Tips: 1mm, 2mm, 3mm, 4mm, 5mm. 0.5mm Knife tips: 3.5mm, 5mm Curved taper: 0.2mm Would buy again!