19 mm Drill Bit Size
A 19 mm drill bit is 0.7480 inches. The nearest common fractional drill bit is 3/4 inch, which measures 0.7500 inches or 19.05 mm.
Quick Answer
Decimal
0.7480 in
Metric
19.00 mm
Closest
3/4 inch
19 mm Drill Bit Equivalent Chart
| Size | Decimal Inches | Metric | Note |
|---|---|---|---|
| 19 mm | 0.7480 in | 19.00 mm | Exact size |
| 3/4 inch | 0.7500 in | 19.05 mm | Closest common fractional size |
| 47/64 inch | 0.7344 in | 18.65 mm | Undersized alternative |
| 25/32 inch | 0.7813 in | 19.84 mm | Oversize clearance alternative |
Common Uses
Large hardware, conduit, plumbing, and heavy fabrication 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.
19 mm Drill Bit FAQ
What are the inch and metric dimensions for 19 mm?
19 mm drill bit measures 0.7480 in and 19.00 mm.
What is the closest common equivalent to 19 mm?
3/4 inch is the closest common equivalent listed here. It measures 0.7500 in or 19.05 mm.
Can I substitute another bit for 19 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.