Flat Wood Bit – 25mm | Spade/Paddle Bit

• Precise 25mm (approx. 1-inch) diameter for large hole drilling
• High-speed steel (HSS) construction ensures durability and long life
• 1/4-inch hex shank for secure grip in drills & quick-change impact drivers
• Sharp centered tip prevents walking and ensures accurate hole placement
• Flat spade design allows for fast, efficient material removal in wood
• Sold individually—buy only the size you need for your project
• Ideal for drilling holes for plumbing pipes, electrical conduit, and cables
• Suitable for use in softwoods, hardwoods, plywood, and OSB
• A fundamental, practical bit for tradespeople and serious DIYers
• Provides a cost-effective solution for specific large-hole tasks

sold as a piece

About Flat Wood Bit – 25mm | Spade/Paddle Bit

Drill large, precise holes quickly and efficiently with this individual 25mm Flat Wood Bit. This robust spade (or paddle) bit is engineered for a single purpose: to bore clean 25mm diameter holes through wood, plywood, and other wooden materials with speed and control. The 25mm Flat Wood Bit features a sharp, centered tip that bites into the workpiece to prevent “walking,” and wide, flat cutting edges that rapidly remove material.

Constructed from durable high-speed steel (HSS), this 25mm Flat Wood Bit maintains its sharpness through repeated use in both soft and hard woods. Its practical 1/4-inch hex shank ensures a secure, slip-free grip in any standard drill chuck and allows for instant changes in quick-release impact driver chucks. Whether you’re a professional running plumbing pipes or electrical conduit, or a DIYer installing door hardware or building furniture, this individual 25mm Flat Wood Bit is the straightforward, effective tool you need for the job.

What is a 25mm Hole Typically Used For?

A 25mm (approximately 1-inch) hole is a highly practical size for many projects. This 25mm Flat Wood Bit is perfectly sized for running standard PVC or copper plumbing pipes through studs, creating passages for bundles of electrical wiring or conduit, and drilling holes for large dowels or ventilation in construction. It’s also a common size for certain types of door latch assemblies and for creating clean openings in furniture for cable management. The versatility of the 25mm Flat Wood Bit makes it a frequently requested size in both trade and DIY contexts.

How Do I Use This Bit to Get a Clean Result?

To achieve the cleanest possible hole with your 25mm Flat Wood Bit, follow these steps. First, mark the center of your hole clearly. Start the drill at a low speed, allowing the sharp center point to establish itself. Once the bit is engaged, you can increase speed. To prevent tear-out on the back side of your workpiece, either drill until the tip just breaks through and then finish from the opposite side, or clamp a sacrificial piece of scrap wood to the back before you begin drilling with your 25mm Flat Wood Bit. This technique ensures a cleaner exit hole.

Why Choose an Individual Bit Over a Set?

Purchasing this 25mm Flat Wood Bit individually is the smart choice when you have a specific, known need. It saves you from buying a full set of bits when you only require one size, offering better value and eliminating tool clutter. Professionals often buy individual Flat Wood Bits like this 25mm model to replace worn-out sizes they use most frequently. It allows for targeted investment in your toolkit, ensuring you have the exact right tool for your current project.

Is This Bit Suitable for Use with an Impact Driver?
Yes, the design of this 25mm Flat Wood Bit makes it well-suited for use with an impact driver. The high-speed steel construction can handle the percussive force, and the hex shank is designed for quick insertion into an impact driver’s chuck. Using an impact driver with this 25mm Flat Wood Bit can make drilling through tough, knotty wood faster and easier, as the hammering action helps drive the cutting edges through the material with less effort from the user.

What Other Sizes Are Typically Available?
While this listing is for the individual 25mm Flat Wood Bit, this type of bit is commonly stocked in a range of metric and imperial sizes to suit any task. Popular sizes often available individually include 16mm, 18mm, 20mm, 22mm, 25, as well as inch-based equivalents like 1/2″, 5/8″, 3/4″, and 1″. You can build a custom collection of Flat Wood Bits by purchasing only the specific sizes your work demands.