

Ships same day if ordered by 12 pm
Manufacturer pricing rules prevent us from advertising our discount — no account or email required to see it.
Secure Payments
Easy Returns
Expert Advice
Fast Shipping
The WIHA 28317 is a No. 1 Phillips screwdriver insert bit engineered for precision fastening in professional hand tool applications. Constructed from through-hardened chrome vanadium steel, this bit delivers durability and resistance to wear under repeated use. Its slim integrated profile allows access in confined spaces where standard-profile bits cannot reach. At 75 millimeters in overall length, it fits standard insert bit holders and power tool bit adapters. The 28317 is rated for insulated applications, making it suitable for electricians and other trades working in environments where electrical safety is a priority.
This insert bit is used across a range of trade applications including electrical panel work, fixture installation, equipment assembly, and general maintenance tasks. The No. 1 point size targets smaller Phillips-head fasteners commonly found in light electrical components, junction boxes, and control enclosures. Licensed electricians, HVAC technicians, and service professionals who require a reliable, insulated bit for daily use will find this an appropriate fit for both hand driver and low-torque power tool use.
Designed as a standard 1/4-inch hex shank insert bit compatible with insert bit holders, bit extensions, and power tool adapters accepting that drive size.
This bit is installed by trade professionals into compatible bit holders or power tool chucks. Ensure the tool is powered off or the driver is in locked position before seating or removing the bit. Do not use insert bits as pry tools or apply lateral force beyond normal fastening direction. When working near live electrical components, confirm that the insulation rating of the complete tool assembly meets applicable NEC requirements for the task.
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.
Add install kit to cart
—
Thanks for subscribing!
This email has been registered!