#35 drill size
A #35 drill is 0.1100 in (2.79 mm). It sits between #36 and #34 in the number series; the nearest metric drill is 2.8 mm.
#35 at a glance
Decimal, metric and the nearest sizes in the other series.
Nearest metric drills
Metric drills step by 0.05 mm below 3 mm and by 0.1 mm from 3 mm. Difference is metric minus inch size.
| Metric drill | Inch | Difference | In inches | Hole |
|---|---|---|---|---|
| 2.75 mm | 0.1083" | −0.044 mm | −0.0017" | Smaller |
| 2.8 mm | 0.1102" | +0.006 mm | +0.0002" | Larger |
Nearby inch drills
The next size down and up in each inch series, so you can pick a substitute from the drawer.
Threads a #35 drill can tap
Threads from the tap tables on this site that this drill can tap, with the thread percentage it leaves (55–85 % shown).
Clearance for screws and bolts
Bolts and screws a #35 hole clears, with the diametral clearance and the gap each side. Metric sizes are compared with ISO 273.
| Fastener | Diameter | Clearance | Per side | ISO 273, metric only |
|---|---|---|---|---|
| #1 screw | 0.0730" | 0.0370" | 0.0185" | – |
| #2 screw | 0.0860" | 0.0240" | 0.0120" | – |
| M2.5 bolt | 2.5 mm | 0.29 mm | 0.15 mm | Close fit (close 2.7, normal 2.9 mm) |
| #3 screw | 0.0990" | 0.0110" | 0.0055" | – |
Inch clearance is the drill size minus the basic major diameter. A drilled hole usually cuts slightly oversize.
Number drill index
Every size in the series, holes drawn to scale.
Common questions
What size is a #35 drill?
A #35 drill is 0.1100 in, which is 2.79 mm (2.7940 mm exactly).
What is the metric equivalent of a #35 drill?
The nearest metric drill is 2.8 mm, 0.006 mm larger. The other close size is 2.75 mm.
What thread can I tap with a #35 drill?
It leaves about 69 % thread in #6-32 UNC.
Which fractional drill is closest to #35?
7/64 in (0.1094 in) is the closest, 0.0006 in smaller.
What does a #35 drill clear?
It clears a #3 screw with 0.0110" total clearance (0.0055" per side).