Wiha 71509 T9 Torx Insert Bit 1/4 Inch Drive 10-pack

Product Description

The WIHA 71509 is a T9 Torx insert bit designed for 1/4 inch hex drive power tools and manual bit holders. Built from steel, it delivers reliable torque transfer for precision fastening tasks in tight or recessed fastener applications. The bit measures 25 millimeters (approximately 1 inch) in overall length, fitting standard 1/4 inch hex chucks and quick-release bit holders. This 10-piece pack is suited for service technicians and tradespeople who require spares on hand for high-turnover work or kit stocking. The T9 Torx profile engages star-drive fasteners commonly found in electronics, HVAC control boards, and light mechanical assemblies.

This bit is applicable across a range of service and installation scenarios where T9 Torx fasteners are used. Common applications include control panel work, low-voltage equipment service, enclosure access, and light-duty mechanical assembly. The 1/4 inch hex shank is compatible with standard bit holders, extension bars, and cordless drivers across most major tool platforms. The 10-piece pack quantity makes it practical for stocking service vans or shared tool kits in commercial and residential trade environments.

Key Features

• T9 Torx end type for precise engagement with star-drive fasteners
• 1/4 inch hex shank fits standard quick-release and manual bit holders
• 25 millimeter overall length suits most insert bit applications
• Steel construction for durable, repeatable torque transfer
• Pack of 10 supports kit stocking and high-frequency service work

Compatibility

Designed as an insert-style replacement bit for use with 1/4 inch hex drive bit holders, magnetic bit extensions, and compatible cordless or manual screwdrivers requiring a T9 Torx profile.

Installation Notes

Insert bits should be seated fully into the bit holder before applying torque. Inspect each bit for wear or rounding before use, as a worn Torx profile can damage fastener heads. When servicing energized control boards or electrical enclosures, de-energize and lock out the equipment per applicable NEC or equipment manufacturer requirements before beginning fastener work.