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The DISSTON COMPANY 616904 is a 5-piece power screwdriver bit set designed for use with power drivers and impact-ready applications in trade and professional settings. The set includes Phillips, slotted, and square recess bits machined from shock-resistant tool steel for durability under repeated torque loads. Slotted bits feature full blade width and extra thickness to fill the fastener slot completely, reducing cam-out, slipping, and bit breakage during high-speed driving. This set is suited for electricians, plumbers, HVAC technicians, and general contractors who need reliable driver bits on the job.
The 616904 bit set covers the most common drive types encountered in residential and light commercial work. The inclusion of Phillips, 6-8 slotted, and square recess profiles makes it practical for panel work, fixture installation, equipment mounting, and general fastening tasks. The shock-resistant tool steel construction holds up to the repeated stress of power driving, making it appropriate for daily production use rather than occasional hand-tool work.
Designed as a general-purpose replacement and supplemental bit set compatible with standard 1/4-inch hex shank power drivers and screwdrivers commonly used in HVAC, electrical, and plumbing trade work.
Install bits into the driver chuck with the tool unpowered and the battery removed or the tool unplugged before changing bits. Verify the bit is fully seated and locked in the chuck before operating the driver. Inspect bits for wear or rounding before each use, as damaged bits increase the risk of fastener head damage and cam-out. Discard any bit that shows cracking, twisting, or significant tip wear.
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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