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Hand tap M14x1.5 LH DIN 2181/2 HSS
0000003486
Thread size: M14x1,542 sizes of this tap
€21.04 tax inc.
Net price: €17.11
Description
Technical data for the M14x1.5 left-hand 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° |
Roughing tap and finishing tap – how much material each removes
Division of work in the 1–2 set
The M14x1.5 LH 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 — by hand, this means high resistance and a risk of 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 | screws into the previously cut threads and produces the full thread 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 LH hole – sequence 1, 2
Hand tapping step by step
Thread M14x1.5 LH in four steps
ØDrilling
Drill bit 12.5 mm
1Roughing tap
Chamfer 8 threads
2Finishing tap
Chamfer 2 threads
✓Finished thread
Thread M14x1.5 LH
Turning sequence: half a turn counterclockwise, a quarter turn clockwise | 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 into a tap wrench and position it perpendicular to the surface. Check the angle from two sides, for example with a square. This is a left-hand thread, so turn in the opposite direction to usual: half a turn counterclockwise, then a quarter turn clockwise. 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. When it screws in smoothly all the way, the thread is complete – check it with an M14x1.5 LH screw.
M14x1.5 left-hand hand taps
M14x1.5 hand tap fine-thread HSS. High-quality hand taps for cutting left-hand LH metric fine threads, M 14x1.5 with a 60° angle, ISO DIN-13. Designed for tapping through holes and blind holes. Manufactured by the well-known Polish company Fanar, whose products are valued by professionals almost worldwide. They offer high manufacturing quality, strong resistance to demanding cutting conditions, and the ability to significantly increase machining productivity and precision. The cutting edges of our M14x1.5 hand taps for left-hand threads are exceptionally resistant to cracking, breakage, chipping, dulling, and other mechanical damage. This makes their use justified both technically and economically. The high quality of M14x1.5 hand taps for left-hand threads also results from the special high-grade high-speed steel (HSS) used in their manufacture. The tools are designed for machining hard and difficult-to-machine materials such as: unalloyed steels, metals, metal alloys, and plastics.
Product accessories
Tapered countersink 16.5/90 DIN 335 C HSS
Reference: 11247 In stock > 10 items
€9.74
€11.98 brutto
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| Courier GLS | Przelew24 / Prepayment | 14,76 zł gross | Delivery time 1 working day |
| Courier GLS | Cash on delivery | 17,26 zł gross | Lead time 1 working day |
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