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Hand Tap M1.7x0.2 DIN 2181/2 6H HSS
13505
Thread size: M1,7x0,2172 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 M1.7x0.2 hand tap
| Technical data | |
|---|---|
| Nominal diameter d1 mm | M1.7 |
| 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 | 1.5 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 M1.7x0.2 thread is cut into the wall of a hole with a diameter of 1.5 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 M1.7x0.2 hole – sequence 1, 2
Hand tapping step by step
Thread M1.7x0.2 in four steps
ØDrilling
Drill bit 1.5 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 1.7 mm minus pitch 0.2 mm gives 1.5 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 4.25 mm, or 2.5 times the thread diameter (2.5 x 1.7 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 M1.7x0.2 screw.
M1.7x0.2 fine-thread hand taps
Hand Tap M1.7x0.2 designed for producing internal metric fine threads with a pitch of 0.2 mm and a 60° profile; this allows the M1.7x0.2 hand tap to provide a stable profile and repeatability in precision miniature joints.
A 2-piece configuration (roughing tap + finishing tap) with the cutting work divided according to the standard for hand tap sets; straight flutes and a square shank for a tap wrench facilitate axial guidance. HSS construction provides good ductility and allows resharpening, while the resulting internal thread meets class 6H and mates with a 6g screw. 60° profile per ISO 68-1, dimensions/pitches per ISO 261/262, tolerances per ISO 965; set conforming to DIN 352.
- Accuracy and fit — class 6H provides normal clearance with 6g, reducing the risk of binding in vibration-sensitive applications.
- Safe hand tapping sequence — two-stage tapping limits torque at the cutting edge; M1.7x0.2 Hand Tap Set facilitates control when tapping holes in thin-walled components.
- HSS durability — high-speed steel withstands varying loads and can be resharpened, extending its working life.
- Chip control — the recommended reverse-and-advance cycles minimize galling and improve thread surface quality.
M1.7x0.2 Hand Tap Set in a 2-piece configuration, with 6H tolerance and a 60° profile, provides predictable results in miniature sizes as an M1.7x0.2 hand tap set.
Stages of cutting an M1.7x0.2 thread with a 2-piece set: roughing tap and finishing tap
Frequently asked questions
The roughing tap is marked with one line, while the finishing tap is marked with two lines or no lines.
The set is designed for producing metric fine threads with a pitch of 0.2 mm in through and blind holes.
Varel M1.7x0.2 HSS taps can be used in low-carbon steel, aluminum alloys, brass and other machinable materials with a suitable tapping oil.
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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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