Tap Drill Size Chart

4.4 mm Drill Size

metric drill

4.4 mm 0.1732 in 4.40 mm

A 4.4 mm drill measures 0.1732 in. It taps 2 threads in this chart.

What a 4.4 mm drill taps

Every thread this drill cuts between 50% and 85% of thread, deepest first. Outside that band it is the wrong drill for the job, so nothing below that line is listed.

Threads a 4.4 mm drill taps, with the percent of thread each one gets and the published chart drill for comparison.
Thread % thread Chart drill Chart %
#12-24 79.1% #16 72.1%
M5 x 0.8 57.7% 4.2 mm 77.0%

Other jobs for a 4.4 mm

Hard-material tap drill
The size to use in stainless or tool steel for M5 x 0.8, where it leaves a shallower thread than the standard drill and cuts tapping torque.

Drills either side

All drill sizes → · Open this drill in the calculator →

4.4 mm drill: common questions

What size is a 4.4 mm drill?
0.1732 inches, which is 4.40 mm. It is a metric drill.
What can I tap with a 4.4 mm drill?
2 threads: #12-24 at 79.1%, M5 x 0.8 at 57.7%.
What drill is next to a 4.4 mm?
Down: #17 at 0.173 in. Up: #16 at 0.177 in.