Security Torx® Insert Bits. T40s x 25mm. 1/4" Drive (2 Bit Pack). Wiha Premium Bits - Exact Fit Precision Machined Made from WIHA CRM-72 Impact resistant Tool SteelComputer controlled hardening for maximum durabilityDesigned for applications requiring high wear resistanceUniversal Fit for all Standard Bit Holders & Power ToolsGuaranteed Quality Made By WihaWiha uses the same image for many products. Photo may not be exactly as product appears. Please read description carefully.