The Festool 577478 D 1/4'' CE/W Brad Point Drill Bit is a precision wood drill bit built for clean, accurate drilling in wood and plastic. This is a brad point drill bit designed for drilling clean holes in wood and plastic. Model number 577478. If you are running a Festool cordless drill with the CENTROTEC interface, this bit is made to give you fast changes, better control, and less slop at the chuck than a standard setup.

What matters here is not just the 1/4 in diameter, but how the bit starts and cuts. The brad point tip helps the bit locate accurately on the mark before the cutting edges start removing material, so you get cleaner entry holes and better control in finish work, cabinet parts, trim, and general shop drilling. Festool also calls out rapid chip ejection, which helps clear waste faster and reduces friction and heat buildup that can dull a bit early.

The CENTROTEC shank is a big part of why this bit stands out. In a compatible Festool CENTROTEC tool chuck, it gives you quicker bit changes and reduced overall tool length compared with a standard keyless chuck setup. Festool notes that the system reduces overall drill length by nearly 1-1/2 inches, which is a real advantage when you are drilling inside casework, between studs, or anywhere clearance is tight. It also helps reduce runout and bit slippage, which translates to cleaner holes and more predictable tracking.

Material and edge life are also part of the story. This bit is made from precision-ground high-alloy steel, with a corrosion-resistant finish to help fight rust and reduce pitch and resin buildup. That matters if you drill a lot of softwood, sheet goods, or laminated material where buildup can change how a bit cuts over time. It also uses a spiral wood drill bit design with a centering point and two blades for quick, clean bore holes.

For applications, this bit is meant for more than basic lumber. Festool positions it for wood and plastic, including solid wood, glued wood, MDF, laminated chipboard, and acrylic glass. That makes it a useful choice for cabinet installers, finish carpenters, remodelers, woodworkers, and serious DIY users who care more about hole quality and repeatability than just punching through material fast.

Compatibility is straightforward. The Festool 577478 D 1/4'' CE/W Brad Point Drill Bit is designed for Festool cordless drills with the CENTROTEC interface and use in the WH-CE CENTROTEC tool chuck. Festool also states that the CENTROTEC shank can be used in standard three-jaw chucks, which gives you flexibility if you move between drills. If you want one dedicated 1/4 in brad point bit for clean drilling, fast changes, and tighter drilling access, this is the kind of accessory that earns its spot in the case instead of rattling around in a junk drawer.

Festool 577478 D 1/4'' CE/W Brad Point Drill Bit is a smart pick for clean work

If hole quality matters more than just getting through the material, this bit makes a strong case for itself.

• Who it's for: Woodworkers, finish carpenters, cabinet installers, and anyone already using Festool CENTROTEC drills and chucks.
• Why it stands out: The brad point design helps start accurately, and the CENTROTEC shank gives you quicker changes, less runout, and a shorter setup in tight spots.
• Worth knowing: This is a single 1/4 in bit, not a set, and it makes the most sense if you can take advantage of the Festool CENTROTEC system.

• What size is this drill bit? This bit has a 1/4 in diameter, listed as 6.4 mm in Festool technical data.
• What materials is it designed to drill? Festool lists it for drilling holes in wood and plastic. It is also suited to solid wood, MDF, laminated chipboard, and acrylic glass.
• Does it only fit Festool drills? It is designed for Festool cordless drills with the CENTROTEC interface and the WH-CE CENTROTEC tool chuck, but Festool also states the CENTROTEC shank can be used in standard three-jaw chucks.
• What makes it different from a basic twist bit? The brad point tip helps the bit start accurately on the mark, while the spiral design and chip ejection are intended to produce cleaner holes and reduce heat buildup.