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Hand Tap M14x1.5 DIN 2181/2 6H HSS
Net price: €13.68
Description
Technical data for the M14x1.5 hand tap
| Technical data | |
|---|---|
| Nominal diameter d1 mm | M14 |
| Thread pitch P mm | 1.5 mm |
| Overall length l1 | 70 mm |
| Flute length l2 | 22 mm |
| Shank diameter d2 | 11 mm |
| Square drive size a | 9 mm |
| Tap drill diameter | 12.5 mm |
| Thread angle G | 60° |
| Tap tolerance | ISO2 6H |

Roughing tap and finishing tap – how much material each removes
Division of work in the 1–2 set
The M14x1.5 thread is cut into the wall of a hole with a diameter of 12.5 mm. The thread groove extends 0.75 mm into the wall. A single tap would have to cut the entire groove at once, requiring substantial hand torque and risking breakage. The set divides this work into two passes.
The drawing shows the entire set in operation. Both taps have the same shank and the same length. They differ in their chamfer, the tapered tip: No. 1 has a chamfer spanning 8 threads, while No. 2 spans only 2 threads. The detail windows at the hole wall show how the thread groove deepens after each tap.
| Tap | Chamfer | Chamfer angle | Material removed | How it works in the hole |
|---|---|---|---|---|
| No. 1 – roughing tap | long, 8 threads | 5° | the main portion of the groove | enters smoothly and establishes thread alignment |
| No. 2 – finishing tap | short, 2 threads | 20° | the remainder, to the full profile | follows the cut threads and produces the full 6H profile |
How to distinguish the taps in the set
The chamfer on No. 1 is 4 times as long as the chamfer on No. 2 — the difference is immediately visible when you place them side by side. No. 1 has an incomplete thread profile; only No. 2 has the full profile. The number is also indicated on the shank: No. 1 has one ring, No. 2 has none. Keep the set together and always start with the roughing tap.
How to tap an M14x1.5 hole – sequence 1, 2
Hand tapping step by step
Thread M14x1.5 in four steps
Drill bit 12.5 mm
Chamfer 8 threads
Chamfer 2 threads
Tolerance 6H
Turning sequence: half a turn clockwise, a quarter turn counterclockwise | Between taps: remove chips from the hole
Start with the hole. The drill diameter is easy to calculate: thread diameter 14 mm minus pitch 1.5 mm gives 12.5 mm. An undersized hole is a common cause of a tap twisting off in the workpiece.
Through hole or blind hole – how deep to drill
The set taps both types of holes. In a through hole, the thread extends through the full material thickness. In a blind hole, cut the thread to 35 mm, or 2.5 times the thread diameter (2.5 x 14 mm, shown as 2.5D in the drawing). Drill the hole deeper than the thread. The finishing tap has a chamfer spanning 2 threads, so approx. 2 incomplete threads remain near the bottom. The extra depth below the thread accommodates them along with the chips.
No. 1 – the roughing tap establishes thread alignment
Fit the roughing tap in the tap wrench and position it perpendicular to the surface. Check the angle from two sides, for example with a square. Turn half a turn clockwise, then a quarter turn counterclockwise. Reversing breaks the chip into short pieces – a slight crunch is normal. The first threads determine whether the thread will be straight.
No. 2 – the finishing tap produces the full profile
Back out the roughing tap and remove chips from the hole. Screw the finishing tap into the cut threads by hand – it should engage them on its own. Continue turning at the same rhythm as with the roughing tap. The finishing tap removes the remaining material and cuts the groove to the full profile within tolerance 6H. When it screws in smoothly all the way, the thread is complete – check it with an M14x1.5 screw.
M14x1.5 fine-thread hand taps
Hand Tap M14x1.5 DIN 2181/2 performs well in assembly and maintenance where a fine pitch of 1.5 is required; as a metric fine thread tap, it ensures a uniform thread profile and perpendicular guidance in steel and alloy bores.
Specifications: diameter 14 mm; pitch 1.5; profile angle 60°; tolerance zone 6H (according to ISO 965); two-piece set according to DIN 2181/2 — roughing tap + finishing tap; pilot hole Ø12.5 mm; for through and blind holes; guidance with a tap wrench is recommended for alignment and torque control.
- Controlled fit — the 6H/6g fit ensures predictable assembly clearance and dimensional stability.
- Sequential shaping — the roughing tap reduces the load on the finishing tap, reducing burrs and improving flank surface roughness; M14x1.5 hand tap set operates smoothly.
- Stable bore geometry — the correct Ø12.5 mm hole and lubrication support concentricity and uniform profile completion.
- Process repeatability — the 2-piece configuration simplifies quality control in workshop cycles.
Reference standards: construction according to DIN 2181/2, profile according to ISO 68-1, tolerances according to ISO 965. The use of M14x1.5 Hand Tap Set helps achieve a clean, uniform profile along the entire thread length in applications requiring a fine pitch.
Stages of cutting an M14x1.5 thread with a 2-piece set: roughing tap and finishing tap

Frequently asked questions
The set includes two taps – a roughing tap for initial guidance and a finishing tap for forming the final thread profile.
Yes, M14x1.5 hand taps can be used in both through holes and blind holes.
M14x1.5 HSS taps are designed for low-carbon steel, aluminum alloys, brass, and other easily machinable metals.
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