Hakko T18-S7 - T18 Series Soldering Tip for Hakko FX-888/FX-8801 - Bevel - 1.2 mm/60? x 14.5 mm T18 series is backwards compatible with the 900M Tip shape: Bevel Tip length: 14.50mm Tip radius: 1.20mm Tip bevel angle: 60