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The WIHA 74312 is a power screwdriver bit designed for use with power drivers and impact-rated screwdriving tools. Built from steel, this bit features a 0.093-inch hex drive and measures 2 inches in overall length. It is sized for standard hex fastener applications and is sold in a pack of 10, making it a practical choice for tradespeople who go through bits regularly on the job. Electricians, HVAC technicians, and general contractors will find this bit suited for repetitive fastening tasks where consistent torque and fit matter.
This bit is intended for use in standard hex-drive power tools and electric screwdrivers. The 0.093-inch hex drive size targets smaller fastener heads commonly found in light-gauge metal, electrical enclosures, and equipment panels. At 2 inches in overall length, it fits standard bit holders without requiring an extension. The 10-piece pack quantity supports job-site use where bit replacement is routine.
Designed as a replacement-style power screwdriver bit compatible with standard hex-drive power tools and electric screwdrivers accepting 0.093-inch hex drive bits.
Insert the bit fully into the power tool or screwdriver bit holder before applying drive force. Ensure the tool is powered off or the trigger is locked before changing bits. Use the appropriate drive size for the fastener to avoid stripping the bit or fastener head. Follow applicable worksite safety practices when operating power screwdriving tools.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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