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Hand Tap M16X0.75 DIN 2181/2 6H HSS
0000011396
Thread size: M16x0,75172 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
€42.40 tax inc.
Net price: €34.47
Description
Technical data for the M16x0.75 hand tap
| Technical data | |
|---|---|
| Nominal diameter d1 mm | M16 |
| Thread pitch P mm | 0.75 mm |
| Overall length l1 | 80 mm |
| Flute length l2 | 18 mm |
| Shank diameter d2 | 12 mm |
| Square drive size a | 9 mm |
| Tap drill diameter | 15.2 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 M16x0.75 thread is cut into the wall of a hole with a diameter of 15.2 mm. The thread groove extends 0.4 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 M16x0.75 hole – sequence 1, 2
Hand tapping step by step
Thread M16x0.75 in four steps
ØDrilling
Drill bit 15.2 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 16 mm minus pitch 0.75 mm gives 15.25 mm — in practice, use a 15.2 mm drill bit. 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 40 mm, or 2.5 times the thread diameter (2.5 x 16 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 M16x0.75 screw.
M16x0.75 fine-thread hand taps
M16X0.75 Hand Tap DIN 2181/2 6H HSS, designed to cut fine threads in holes in steels and cast iron, ensures control of the 60° profile; in service and assembly applications, the M16x0.75 hand tap maintains dimensional repeatability when used with a tap wrench.
Technical specification: thread size M16, pitch P=0.75; 60° metric profile; HSS construction, ground finish; straight flutes for uniform chip formation; straight shank with a square drive; right-hand; recommended drill diameter 15.25 mm for proper thread engagement and maintenance of axial alignment during manual operation.
- Stable geometry. A progressive chamfer and controlled hole chamfering reduce torque and the risk of oversizing the thread entry.
- Fit consistent with the tolerance class. The 6H tolerance mates with 6g threaded shafts, maintaining proper assembly clearance and a clean profile.
- Tool life and smoothness. HSS combines edge resistance with ductility, reducing chipping and promoting low thread surface roughness.
- Consistent machining process. In workshop practice M16x0.75 hand tap set facilitates the transition from roughing to finishing without losing axial alignment.
Standards and tolerances: manufactured to DIN 2181/2; thread profile according to ISO 68-1; pitch range according to ISO 261/262; internal thread fits according to ISO 965, class 6H. Hand Tap Set M16X0.75 DIN 2181/2 6H HSS ensures reliable production of a full profile in one-off and repair machining, as well as quality control of threaded joints.
Stages of cutting an M16x0.75 thread with a 2-piece set: roughing tap and finishing tap
Frequently asked questions
The set consists of two taps — a roughing tap and a finishing tap, which guarantee a fully formed thread when used in sequence.
Yes, the set can be used in both through holes and blind holes, in accordance with DIN 2181 and class 6H.
The HSS tool works well in low-carbon steel, aluminum, brass, and other materials with good machinability.
Product accessories
Countersink M16X0.75 HSS DIN 22 568 Cztool
Reference: 0000005866 In stock < 10 items
€60.53
€74.45 brutto
Tapered countersink 20.5/90 DIN 335 C HSS
Reference: 11248 In stock > 10 items
€14.47
€17.80 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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