5 mm Drill Bit Size
A 5 mm drill bit is 0.1969 inches. The closest standard numbered drill is #8 at 0.1990 inches, and the nearest common fractional choices are 13/64 inch oversized or 3/16 inch undersized.
Quick Answer
Decimal
0.1969 in
Metric
5.00 mm
Closest
#8
5 mm Drill Bit Equivalent Chart
| Size | Decimal Inches | Metric | Note |
|---|---|---|---|
| 5 mm | 0.1969 in | 5.00 mm | Exact size |
| #8 | 0.1990 in | 5.05 mm | Closest numbered drill size |
| 13/64 inch | 0.2031 in | 5.16 mm | Common fractional oversize |
| 3/16 inch | 0.1875 in | 4.76 mm | Common fractional undersize |
Common Uses
Common pilot holes, wall anchors, and metric fastener clearance holes.
Exact vs Nearest Size
Choose the exact bit for threads, tight hardware fits, dowels, and precision layouts. Use the nearest common equivalent only for rough pilot holes, clearance holes, or material removal where a slight difference is acceptable.
5 mm Drill Bit FAQ
What are the inch and metric dimensions for 5 mm?
5 mm drill bit measures 0.1969 in and 5.00 mm.
What is the closest common equivalent to 5 mm?
#8 is the closest common equivalent listed here. It measures 0.1990 in or 5.05 mm.
Can I substitute another bit for 5 mm?
Use the exact bit size for tap drilling, precision holes, dowels, and manufacturer-specified hardware. A nearby fractional, metric, numbered, or letter drill bit is usually fine only for clearance holes or rough pilot holes.