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Hand tap M26X1 DIN 2181/2 6H HSS Varel
14249
Thread size: M26x1172 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
€82.54 tax inc.
Net price: €67.11
Description
Technical data for the M26x1 hand tap
| Technical data | |
|---|---|
| Nominal diameter d1 mm | M26 |
| Thread pitch P mm | 1 mm |
| Overall length l1 | 90 mm |
| Flute length l2 | 22 mm |
| Shank diameter d2 | 18 mm |
| Square drive size a | 14.5 mm |
| Tap drill diameter | 25 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 M26x1 thread is cut into the wall of a hole with a diameter of 25 mm. The thread groove extends 0.5 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 M26x1 hole – sequence 1, 2
Hand tapping step by step
Thread M26x1 in four steps
ØDrilling
Drill bit 25 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 26 mm minus pitch 1 mm gives 25 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 65 mm, or 2.5 times the thread diameter (2.5 x 26 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 M26x1 screw.
M26x1 fine-thread hand taps
M26X1 Hand Tap DIN 2181/2 6H HSS is designed to cut metric fine threads in structural steels and cast iron; for size M26x1, it maintains a 60° profile, axial guidance and a repeatable class 6H internal thread fit in workshop and assembly operations.
Geometry and construction data: size M26, pitch P=1; right-hand cutting; Varel HSS high-speed steel construction with a ground finish; straight flutes for controlled chip evacuation; progressive chamfer; straight shank with a square drive; recommended drill 25.0 mm, promoting proper thread engagement and stable axial alignment even in blind holes. In workshop use, precision and an organized workflow are facilitated by M26x1 Hand Tap Set.
- Load control. The progressive chamfer and entry bevel reduce torque and stabilize the starting zone.
- Precise fit. The 6H internal thread mates with 6g, maintaining nominal clearance and a clean joint profile.
- Surface quality. Ground microgeometry and straight flutes reduce burr formation, promoting low thread surface roughness.
- Consistent operation. In staged operations, a two- or three-piece set reaches the full profile faster without losing axial alignment.
Applicable standards: DIN 2181/2 (construction), ISO 68-1 (60° profile), ISO 261/262 (series and pitches), ISO 965 — class 6H for internal threads. M26x1 hand tap set DIN 2181/2 6H HSS ensures repeatable thread geometry and stable results in one-off machining and precision assembly.
Stages of cutting an M26x1 thread with a 2-piece set: roughing tap and finishing tap
Frequently asked questions
The set includes two taps: a roughing tap and a finishing tap, used in sequence.
Yes, the set can be used in through holes and blind holes.
The tap performs well in low-carbon steel, aluminum, brass, and other materials with good machinability.
Product accessories
Metal drill bit 25 NWKc HSS DIN 345 Baildon
Reference: 0384 In stock > 10 items
€31.58
€38.84 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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