TB-4 – Screwdriver Set with Phillips & Slot Tips, Go-Thru Octagonal PP Ergonomic Handle in Plastic Tray

• Juego de Destornilladores – TB-4 | Puntas Phillips y Planas con Mango Octogonal PP Ergonómico y Pasante en Bandeja Plástica
•  Jeu de Tournevis – TB-4 | Embouts Phillips et Fentes avec Poignée Octogonale PP Ergonomique Traversante en Plateau Plastique
• Schraubendrehersatz – TB-4 | Phillips- & Schlitzspitzen mit Octagonalem PP Ergonomischem Durchgangsgriff im Kunststofffach
•  Jogo de Chaves de Fenda – TB-4 | Pontas Phillips e Reta com Cabo Octogonal PP Ergonômico Passante em Bandeja Plástica
• Zestaw Wkrętaków – TB-4 | Końcówki Phillips i Płaskie z Ośmiokątną Rękojeścią PP Ergonomiczną Przelotową w Tacy Plastikowej
• طقم مفكات – TB-4 | رؤوس فيليبس ومسطحة بمقبض PP مثمن الشكل مريح وصينية بلاستيكية
•  ชุดไขควง – TB-4 | หัวฟิลลิปส์และปากแบน พร้อมด้าม PP แปดเหลี่ยมแบบทะลุ ในถาดพลาสติก
• Bộ Tua Vít – TB-4 | Đầu Phillips và Dẹt với Tay Cầm PP Bát Giác Ergonomic Xuyên Thấu trong Khay Nhựa
• 螺丝刀套装 – TB-4 | 十字与一字尖配八角PP人体工学贯穿手柄（塑料托盘装）
• 螺絲刀套裝 – TB-4 | 十字與一字尖配八角PP人體工學貫穿手柄（塑料托盤裝）
• Ratchet Handle Information Please find Handle Introduction-(Ratchet & Screwdriver)

TB-4 Go-Thru Screwdriver Set is a multi-functional impact driving module pre-nested inside a high-impact TB Modular Plastic Storage Tray. What makes this set unique is its 3-in-1 hybrid driver engineering: rather than acting as simple manual turners, these tools integrate a continuous one-piece steel shank, a solid steel rear striking anvil cap, an octagonal non-slip Polypropylene (PP) handle, and a forged hex bolster. Designed to shock-loosen seized, corroded, or paint-filled fasteners across engine blocks, heavy machinery frames, and industrial equipment, it bridges the gap between precision screwdrivers, striking chisels, and wrench-assisted high-torque tools.