Meet the SPAX T-Star Washer T40 1 in. L driver bit — a purpose-built tool designed to handle demanding fastening tasks with confidence. Built for impact drivers, this steel, non-magnetic bit combines rugged durability with precise torque transfer, helping you drive fasteners cleanly and consistently.
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Impact-rated steel stands up to high-torque use, resisting wear and reducing breakage during repetitive driving.
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T-Star Washer drive (Torx T40) delivers strong engagement and excellent torque transfer, helping prevent cam-out when driving tough fasteners.
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Non-magnetic construction minimizes interference with sensitive hardware and electronics on busy job sites.
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1/4 in. hex shank fits standard bit holders and quick-change systems, enabling fast tool changes and reliable seating in power tools.
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1 inch length provides ample reach for shallow to mid-depth screws in wood, metal, and composite applications.
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Single-piece blister-card packaging keeps the bit protected and easy to select from your toolbox or pegboard.
Use cases you’ll tackle with this bit include installing deck boards and framing screws where Torx T40 is recommended, cabinetry assembly that demands high-torque seating, and any project where an impact driver’s speed and power are essential. The T-Star Washer design helps distribute load and seat screws flush, reducing the chance of over-tightening and keeping your work surface clean and professional-looking.
Who benefits most: professional carpenters, remodelers, and serious DIYers who demand consistent performance from their tools and want a reliable, long-lasting Torx bit that won’t magnetize nearby components. When you need a single, dependable bit for high-torque fastening, the SPAX T-Star Washer T40 1 in. driver bit is the focused solution that delivers steady results project after project.