The Right Drill Bits + FREE Size Charts

10 Quick Tips in Choosing the Right Drill Bit:

1. Material Type: Choose bits designed for wood, metal, plastic, or masonry.
2. Drill Bit Gauge: Use a gauge to identify bit sizes quickly.
3. Screw Match: Match the bit to the screw's shank diameter.
4. Size Charts: Cross-reference metric and imperial sizes.
5. Test First: Test on scrap material before the final piece.
6. Bit Labels: Ensure bits are clearly labeled for easy identification.
7. Pilot Holes: Use smaller bits for pilot holes to prevent splitting.
8. Speed Settings: Adjust drill speed based on bit size and material.
9. Bit Quality: Invest in high-quality bits for better performance.
10. Storage: Keep bits organized in a labeled case or holder.

Why Drill Bit Sizes Matter

Picking the right drill bit size ensures your screws and bolts fit perfectly, preventing damage to your workpiece and the drill bit.

Metric vs. Imperial: The Basics

Metric sizes are in millimeters, while imperial sizes are in inches. For example, a 10mm drill bit is roughly the same as a 3/8 inch bit. Knowing these conversions can save you a lot of frustration, especially when working with imported tools and materials.

Must-Have Bit Sets for Your Toolbox

Whether your are just starting or replenishing, these are our must-have sets to consider:

• Metric Drill Bit Set
• Imperial Drill Bit Set
• Universal Drill Bit Set
• Combined Drill & Countersink Bits
• Saber TiN Coated HSS Singled Ended Panel Drill Bit
• Bordo Long Series HSS Bright Drill Bit

These sets can cover all your initial drilling needs, ensuring you always have the right tool for the job.

CLICK TO DOWNLOAD OUR FREE PRINTABLE DRILL BIT SIZE CHART

PRO TIP:  You can also buy a Sutton M8100650 Metric and Imperial Multi Function Gauge to measure your drill bits, fasteners, nuts and threads.

Extra FREE CHARTS below:

• Anchor Bolt Size Chart:  Find metric anchor bolts like countersunk head, drop-in, hex flange nut, flush head, and stud anchors. Common diameters included.
• Fastener Reference Chart: Cross-reference bolt, nut, or screw sizes with metric, Unified Thread Standard, and British Thread Standards. Simple illustrations included.
• Loctite Application Chart: Choose the right Loctite product for various materials and surfaces.
• Pulley Size Chart: Browse aluminum and cast-iron pulleys for different belt sections and grooves. Metric and imperial sizes available.
• Socket Sizing Cross-Reference Chart (Metric-Imperial Values): Match sockets and drives in metric and imperial sizes.
• Spanner Size Chart: Find the right spanner size for hexagonal bolts, nuts, or screws. Metric and imperial sizes included.
• Tapping Drill Size Chart for Thread Cutting Taps: Identify the right drill size for pilot holes before cutting threads. Metric and imperial sizes included.

No matter the project, choosing the correct drill bit size is crucial for achieving cleaner, more precise holes. Not only does it enhance the quality of your work, but it also extends the life of your tools and materials. By investing a little time in selecting the right bit, you can ensure professional results and avoid unnecessary wear and tear.