Building upon a legacy of durability, this Penn Slammer IV reel incorporates an all-brass CNC gear technology designed to withstand the rigours of heavy-duty fishing while maintaining precise meshing under tension. The internal architecture is reinforced by an 8+1 stainless steel bearing system, which minimises friction and ensures consistent retrieval speeds even when battling large, fatiguing fish. A dedicated hydrophobic line roller bearing further enhances performance by repelling water and salt, preventing corrosion and ensuring the line feeds smoothly off the spool during casting. Operational reliability is central to the design, highlighted by a sealed drag system capable of delivering a maximum drag force of 13 kg. This configuration utilises HT-100 carbon fibre drag washers to provide a wide range of usable drag settings that remain consistent under pressure. The reel features an automatic bail trip mechanism, a specific engineering choice for the 3500 size that facilitates rapid hook sets without manual intervention. Additionally, a spare EVA handle knob is included for the 3500 model, offering a practical solution for maintenance and ensuring the user can maintain a secure grip throughout extended fishing sessions. Maximum drag capacity of 13 kg for controlling large game fish. 8+1 stainless steel bearing system reduces friction during retrieval. Automatic bail trip mechanism enables faster hook sets. Full metal body and sideplate provide structural integrity. HT-100 carbon fibre drag washers ensure consistent pressure. IPX6 sealing rating protects internal components from water ingress. Brass main gear manufactured via CNC technology for precision. Includes a spare EVA handle knob for maintenance.