18ga. Galvanised. Suitable for Tacwise Master Nailer 181EL (Quote 98804) and Tacwise 191EL Nailer/Stapler (Quote 45171). Specifications: 18ga.Equivalents: Atro TIP. BEA SK400 / 1200. Duofast HB60. Suits: Light Duty and Trade Brad Nailers, Pro 18GEL, 13EL. ACE and K 18 / 50 and 18 / 32. Rapesco SP18GEL, 53EL, and Z140 and SB-1850BN.