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Hand Tap M62X1.5 DIN 2181/2 6H HSS Fra
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  • Hand Tap M62X1.5 DIN 2181/2 6H HSS Fra
  • Hand Tap M62X1.5 DIN 2181/2 6H HSS Fra - nr. 1
FRA

Hand Tap M62X1.5 DIN 2181/2 6H HSS Fra

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Description

Technical data for the M62x1.5 hand tap

Technical data
Nominal diameter d1 mm M62
Thread pitch P mm 1.5 mm
Overall length l1 140 mm
Flute length l2 33 mm
Shank diameter d2 45 mm
Square drive size a 35 mm
Tap drill diameter 60.5 mm
Thread angle G 60°
Tap tolerance ISO2 6H
Fine-thread taps drawing

Roughing tap and finishing tap – how much material each removes

Division of work in the 1–2 set

The M62x1.5 thread is cut into the wall of a hole with a diameter of 60.5 mm. The thread groove extends 0.75 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.

Tapping an M62x1.5 hole: 60.5 mm hole, taps No. 1 and No. 2 in a cross section of the plate
Tapping an M62x1.5 hole: 60.5 mm hole, taps No. 1 and No. 2 in a cross section of the plate

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.

TapChamferChamfer angleMaterial removedHow it works in the hole
No. 1 – roughing taplong, 8 threads5°the main portion of the grooveenters smoothly and establishes thread alignment
No. 2 – finishing tapshort, 2 threads20°the remainder, to the full profilefollows 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 M62x1.5 hole – sequence 1, 2

Hand tapping step by step

Thread M62x1.5 in four steps

ØDrilling

Drill bit 60.5 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 62 mm minus pitch 1.5 mm gives 60.5 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 155 mm, or 2.5 times the thread diameter (2.5 x 62 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.

M62x1.5 thread in a through hole and a blind hole – cross sections with clearance for chips and the chamfer

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 M62x1.5 screw.

M62x1.5 fine-thread hand taps

Hand Tap M62x1.5 DIN 2181/2 6H HSS  is used to produce metric fine threads with a diameter of sixty-two millimeters and a pitch of one and a half millimeters in structural steels and metal alloys with tensile strengths up to eight hundred megapascals. In workshop practice, an important role is played by M62x1.5 Hand Tap Set, which helps maintain the working sequence and improves axial stability.

Design parameters: nominal diameter sixty-two millimeters; pitch 1.5 mm; 60° metric profile according to ISO 68-1; 6H hole tolerance according to ISO 965; right-hand; straight flutes for controlled evacuation. Material: ground high-speed steel (HSS), resistant to microchipping and able to maintain edge sharpness. The two-part arrangement according to DIN 2181/2 — starter tap (I) and finishing tap (II) — stabilizes load distribution. Recommended drill diameter: 60.5 mm; using emulsion or active cutting oil improves surface quality and edge life.

  • Smooth guidance — sequential use of the two taps reduces torque pulsations and promotes uniform thread formation.
  • Extended service life — ground HSS reduces wear and promotes a clean profile.
  • Precise fit — tolerance class 6H allows inspection with GO / NO-GO gauges.
  • Workflow organization — in assembly practice, repeatability and consistency of operations are facilitated by M62x1.5 Hand Tap Set.

DIN 2181/2, ISO 68-1, and ISO 965 standards ensure compatibility with inspection instruments and predictable results in one-off and small-batch production.

Stages of cutting an M62x1.5 thread with a 2-piece set: roughing tap and finishing tap


Roughing tap and finishing tap profiles

Frequently asked questions

Drill to 60.5 mm (diameter 62 mm minus pitch 1.5 mm) to achieve the correct thread engagement in class 6H.

The HSS tool works well in low-carbon steel, aluminum, brass, and other materials with good machinability.

High-speed steel (HSS) provides high durability, abrasion resistance, and stable operation even under demanding conditions.

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Hand Tap M62X1.5 DIN 2181/2 6H HSS Fra

Hand Tap M62X1.5 DIN 2181/2 6H HSS Fra

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