The Festool 500845 Centrotec Phillips #2 Driver Bits, 100mm are long-reach driver bits made for fastening Phillips #2 screws with Festool cordless drills using the CENTROTEC interface. This is a screwdriver bit designed for fastening in tight spaces, hardware installs, and recessed screw locations where standard bits do not give you enough access. Model Number: 500845.

What matters here is the combination of reach and control. At 4" (100 mm) overall length, these bits make it easier to drive screws in fittings, inside bore holes, and in narrow clearances around assembled parts. Festool also notes a 2-11/16" (69 mm) projection from the WH-CE CENTROTEC tool chuck, which helps when you need extra stand-off without adding a bulky extension.

These bits are built around the CENTROTEC quick-change system, so they are meant to speed up the switch between drilling and driving. On the job, that means less time loosening a chuck and less fumbling with separate adapters. The CENTROTEC design also keeps the setup compact and light compared to a conventional chuck-and-bit arrangement, which helps when you're doing repeated cabinet hardware work, furniture assembly, or detail fastening.

Festool calls out another practical advantage with this format: the bit extends directly into the drill spindle, effectively acting as a more direct extension of the motor. In plain terms, that gives you a more connected feel when the screw starts to seat. For small hardware, finish fittings, and controlled fastening tasks, that extra control is more useful than raw aggression.

Build details are aimed at service life as well. It has a chemically nickel-plated tip for longer wear and a chrome-coated finish for corrosion protection. That is the kind of thing you notice over time if you are driving a lot of similar fasteners and do not want the tip to round off early or pick up rust in a van or trailer.

Compatibility is one of the big reasons to buy this specific bit instead of a generic long Phillips bit. It is suitable for Festool cordless drills with the CENTROTEC interface for use in the WH-CE CENTROTEC tool chuck, while also being compatible with a standard or keyless chuck. That gives you some flexibility if you want the bit to pull double duty across different drill setups.

This is a smart buy for cabinet installers, finish carpenters, furniture builders, kitchen fitters, and serious DIY users who already run Festool drilling and fastening gear. If you regularly drive screws into hardware channels, brackets, hinges, or recessed mounting points, the longer shaft and CENTROTEC fit are the real value here.

Festool 500845 Centrotec Phillips #2 Driver Bits, 4" (100 mm)

If you already work in the Festool CENTROTEC system, this is the kind of small accessory that makes everyday fastening smoother and less annoying.

• Who it's for: Cabinet installers, furniture builders, kitchen fitters, and anyone driving Phillips #2 screws in tight or recessed spots.
• Why it stands out: The 4" (100 mm) length, direct CENTROTEC fit, and better control at the screw head make it more useful than a generic long bit.
• Worth knowing: This is a two-piece bit pack, not a full fastening kit, and the real benefit shows up most if you are already running a Festool CENTROTEC chuck setup.

• Will this bit only work with Festool drills? No. It is made for Festool cordless drills with the CENTROTEC interface, but Festool also states it is compatible with standard or keyless chucks.
• What screw type is this bit made for? It is a Phillips #2 driver bit.
• Why choose the 4" (100 mm) length? The extra length helps when driving screws in fittings, bore holes, and other narrow or recessed locations where a shorter bit is harder to position.