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The WIHA 72534 is a 4.5mm slotted screwdriver bit designed for 1/4 inch hex drive tools. Built for repetitive fastening tasks in trade and industrial environments, this bit delivers consistent engagement with slotted fastener heads. The 3/16 slotted point size matches standard slotted screw profiles encountered in electrical, HVAC, and general mechanical work. With an overall length of approximately 1 inch, the 72534 is a short-format bit suited for use in tight spaces with a bit holder, impact driver, or ratcheting screwdriver. Sold in quantities of 30, this bit is well suited for stocking tool kits or service vans.
The WIHA 72534 is a general-purpose replacement bit applicable across residential and commercial service environments. Electricians, HVAC technicians, and plumbers will encounter slotted fasteners on terminal blocks, panel covers, junction boxes, and equipment access hardware. The 1/4 inch hex drive shank fits standard bit holders and power tool chucks commonly carried on service vehicles. This bit is a practical bulk-pack option for shops and service teams that go through bits at high volume.
Designed for use with any 1/4 inch hex drive bit holder, manual screwdriver handle, or power tool chuck accepting standard 1/4 inch shank screwdriver bits.
Insert the 1/4 inch hex shank fully into the bit holder or driver chuck before applying torque to avoid slippage. When driving slotted fasteners, align the blade squarely in the slot to prevent cam-out and fastener damage. Replace worn or chipped bits promptly, as degraded bit tips increase the risk of fastener head damage and loss of drive control.
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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