Irwin Torx Screwdriver Bit

This pack of 10 IRWIN TORX Insert Bits in T40 size with 25mm length is designed for the most demanding heavy-duty fastening applications. The T40 profile is the largest size in this range, ideal for structural fixings, heavy machinery assembly, and construction applications where substantial torque transfer is essential. Manufactured from industrial-grade S2 steel, these bits deliver uncompromising strength and durability to handle the most challenging fastening operations. The robust steel composition maintains its integrity under extreme stress, resisting wear and deformation to ensure long-lasting, reliable performance. Engineered for professional use, these T40 insert bits excel in both hand-driving applications and with power tools when paired with the IRWIN insert bit holder. The 25mm insert bit length ensures compatibility with standard bit holders and chucks whilst providing the substantial engagement needed for large fasteners.