METRIC COARSE THREAD SIZES in mm
| Tap Size | Drill size |
| M2 x 0.4 | 1.6 |
| M2.5 x 0.45 | 2.05 |
| M3 x 0.5 | 2.5 |
| M3.5 x 0.6 | 2.9 |
| Tap size | Basic major dia (mm) | Drill size (mm) |
|---|---|---|
| M1.6 x 0.35 | 1,6mm | 1,25mm |
| M2 x 0.4 | 2mm | 1,6mm |
| M2.5 x 0.45 | 2,5mm | 2,05mm |
| M3 x 0.5 | 3mm | 2,5mm |
What size drill do you use for tap?
11 rows · Thread Size: Tap Drill (mm) Thread Size: Tap Drill (mm) Thread Size: Tap Drill (mm) Thread Size: Tap Drill (mm) M1 x 0.25. 0.75. M3.5 x 0.6. 2.90. M12 x 1.75. 10.20. M36 x 4. 32.00. M1.1 x 0.25. 0.85. M4 x 0.7. 3.30. M14 x 2. 12.00. M39 x …
How to calculate drill size for tap?
23 rows · M3 1/8 3.303.15 30 Tap Drill Clearance Drill 75% Thread for Aluminum, Brass,& Plastics 50% ...
How to find tap drill size?
58 rows · tap/drill sizes cont. pipe thread drilled hole sizes tap size cutting taps tru-flo ™ ...
What size drill and tap do I Need?
Tap Size. Drill Size. M1.6 x 0.35. 1.25mm. M2 x 0.4. 1/16. M2.5 x 0.45. 2.05mm. M3 x 0.5 ...
How big are M3 holes?
Metric threadsThreadDrill size for tapping standard metric threadsClearance holeM2.522.9M32.53.4M3.52.93.9M43.34.520 more rows
What is the formula for tap drill size?
Tap-drill diameter equals nominal diameter minus thread pitch. For example, drill size for a 3/8-16 thread is 0.375 0.0625 (pitch) = 0.312 in. in diameter, and for a 10-32 thread, the drill diameter is 0.190 0.032 = 0.159 in. (a #21 drill).
What size is a M5 tap?
As I understand it the correct drill size for a M5 tapped thread is 4.2mm (hole size - pitch: 5.0mm - 0.8mm).
What is the drill size for M4 tap?
3.6 mmM4-035 we use the 3.6 mm drill bit As per the ISO metric screw thread standard, the thread depth should be 0.614 x pitch, which is why a smaller pitch number also results in a lower thread depth value.
What is the formula for tapping?
In/Min = RPM divided by # of Threads / in.
How do I choose a drill bit for a tap?
Rules of Thumb A good tap drill is 90% (± 2 pp) of major diameter for fine threads. For metric V threads, the concept of major minus pitch (i.e., the major or widest diameter of the intended screw in millimeters minus the pitch of the threads of that screw in millimeters per thread) yields a good tap drill diameter.
What size hole do I drill for a M5 tap?
4.2mmTap SizeTap SizeDrill SizeM4 x 0.753.4mmM5 x 0.84.2mmM5 x 0.94.2mmM6 x 15mm34 more rows
What size drill bit do I need for an M5 tap?
You will get away with a 4.5mm for M5, but you really should get the proper 4.2mm. In fact, the best investment any workshop that deals with metric threads can make is a set of 1 - 5.9 x 0.1 steps drills.
What size hole do I drill for a 5mm tap?
Metric Tap and Drill Bit Size TableTapMetric DrillUS Drill5mm x 0.84.3mm-6mm x 1.05.2mm-7mm x 1.06.1mm15/64"8mm x 1.256.9mm17/64"13 more rows
What is tap drill chart?
Knowing the right tap drill size to use for your screws or bolts is nearly impossible to determine without the use of a good tap drill chart. A tap drill chart is an essential reference tool that every machinist should have readily accessible and at hand.
Is M10 a 10mm?
If the size is M10 x 25, that would mean that the diameter is 10 mm. Since there is no thread pitch listed, the fastener is assumed to have a coarse thread. The 25 indicated a length of 25 mm. A matching nut would be labeled M10, which also doesn't require a thread pitch since it's a course thread fastener.
What is M4 size?
M3-0.50 and M3-0.35. M4-0.7 and M4-0.5.