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Hand Tap M1.2x0.2 DIN 2181/2 6H HSS
12703
Thread size: M1,2x0,2172 sizes of this tap
M1x0,2M1,2x0,2M1,4x0,2M1,6x0,2M1,7x0,2M1,8x0,2M2x0,25M2,2x0,25M2,2x0,35M2,3x0,25M2,3x0,35M2,5x0,35M3x0,35M3,5x0,35M4x0,5M4,5x0,5M5x0,5M5,5x0,5M6x0,5M6x0,75M7x0,5M7x0,75M8x0,5M8x0,75M8x1M9x0,5M9x0,75M9x1M10x0,5M10x0,75M10x1M10x1,25M11x0,75M11x1M11x1,25M12x0,5M12x0,75M12x1M12x1,25M12x1,5M13x1M13x1,25M14x0,75M14x1M14x1,25M14x1,5M15x1M15x1,5M16x0,75M16x1M16x1,25M16x1,5M17x1M17x1,5M17x2M18x0,75M18x1M18x1,25M18x1,5M18x2M19x1M19x1,5M20x0,75M20x1M20x1,25M20x1,5M20x2M21x1,5M22x1M22x1,25M22x1,5M22x1,75M22x2M24x1M24x1,5M24x2M25x1M25x1,5M25x2M26x1M26x1,25M26x1,5M26x2M27x1M27x1,5M27x2M28x1M28x1,5M28x2M30x1M30x1,5M30x2M30x2,5M30x3M32x1,5M32x2M32x3M33x1,5M33x2M33x3M34x1,5M34x2M35x1,5M36x1M36x1,5M36x2M36x3M38x1,5M38x2M38x3M39x1M39x1,5M39x2M39x3M40x1,5M40x2M40x3M42x1,5M42x2M42x3M42x4M45x1,5M45x2M45x3M45x4M46x1,5M46x2M48x1,5M48x2M48x3M48x4M50x1,5M50x2M50x3M52x1M52x1,5M52x2M52x3M52x4M55x2M55x3M56x1,5M56x2M56x3M56x4M58x2M58x4M60x1,5M60x2M60x3M62x1,5M62x2M62x3M62x4M64z1,5M64x2M65x2M65x4M68x1,5M68x2M68x3M68x4M70x1,5M70x2M72x1,5M72x4M75x1,5M75x2M76x1,5M80x1,5M85x2M90x2
€12.95 tax inc.
Net price: €10.53
Description
Technical data for the M1.2x0.2 hand tap
| Technical data | |
|---|---|
| Nominal diameter d1 mm | M 1.2 |
| Thread pitch P mm | 0.2 mm |
| Overall length l1 | 44 mm |
| Flute length l2 | 9 mm |
| Shank diameter d2 | 2.5 mm |
| Square drive size a | 2.0 mm |
| Tap drill diameter | 1 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 M1.2x0.2 thread is cut into the wall of a hole with a diameter of 1 mm. The thread groove extends 0.1 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 M1.2x0.2 hole – sequence 1, 2
Hand tapping step by step
Thread M1.2x0.2 in four steps
ØDrilling
Drill bit 1 mm
1Roughing tap
Chamfer 8 threads
2Finishing tap
Chamfer 2 threads
✓Finished thread
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 1.2 mm minus pitch 0.2 mm gives 1 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 3 mm, or 2.5 times the thread diameter (2.5 x 1.2 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 M1.2x0.2 screw.
M1.2x0.2 fine-thread hand taps
Hand Tap M1.2x0.2 designed to cut internal metric fine threads with a pitch of 0.2 mm and a 60° profile; this allows the M1.2x0.2 hand tap to provide a stable profile in precision miniature joints.
2-piece set: roughing tap (long chamfer) + finishing tap (short chamfer); straight flutes; square shank for a tap wrench; HSS material; thread tolerance 6H; compliance with DIN 352; M1.2×0.2 system compliant with ISO 68-1 (60° angle) and dimensions to ISO 261/262.
Staged cutting reduces peak cutting edge loads at small diameters and simplifies straightness control; periodic reversal to break chips and the use of low-viscosity coolant are recommended.
- Microthread precision — class 6H and the 60° profile guarantee a repeatable fit with a 6g screw in vibration-sensitive applications.
- Torque control — two-stage operation reduces the risk of torsional shank breakage; M1.2x0.2 hand tap set allows cutting forces to be distributed evenly.
- HSS durability — high-speed steel withstands intermittent loads well and can be resharpened, extending the operating cycle, and ultimately also performs well in thin-walled workpieces as an M1.2x0.2 hand tap set.
- Stable guidance — straight flutes support controlled chip evacuation during reverse-and-advance cycles, improving directional stability in blind and through holes.
Compliance and standards: sixty° metric profile to ISO 68-1; M series and pitches to ISO 261/262; internal thread tolerances to ISO 965 (typically 6H); hand tap set construction compliant with DIN 352.
The M1.2x0.2 Hand Tap in a two-piece arrangement (I + II), with straight flutes and 6H tolerance, combined with M1.2x0.2 hand tap set helps maintain axial alignment and delivers predictable performance at micro sizes.
Stages of cutting an M1.2x0.2 thread with a 2-piece set: roughing tap and finishing tap
Frequently asked questions
The tap has line markings – one line identifies tap No. 1 (roughing tap), while two lines or no lines identify the final, finishing tap.
The M1.2x0.2 tap set contains a roughing tap and a finishing tap so that tapping takes place in two stages – roughing and finishing. The first cuts the initial thread, and the second produces its final form and tolerance.
A tap made of HSS high-speed steel can be used for stainless steel; however, a suitable tapping oil is recommended to reduce friction, facilitate chip evacuation and extend tool life.
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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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