Bosch T15 Insert Bit XH 37159B10
Rely on the professional-grade performance of the Bosch 37159B10 T15 Torx? Insert Bit for all your driving needs. As part of Bosch’s Extra Hard (XH) series, this 1-inch bit is engineered for universal use, providing exceptional durability and a precision fit that tradespeople can depend on for consistent results. The bit is constructed from high-quality S2 tool steel and undergoes a fully hardened production process. A proven tempering method is then applied to give the bit increased durability and resistance to wear, ensuring a long life even in demanding, repetitive applications. The Torx T15 tip is precision-formed to provide a tight, positive fit with the fastener, which maximizes torque transfer and significantly reduces the risk of cam-out and stripped screws. Its universal 1/4-inch hex shank ensures compatibility with all standard bit holders.








