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Description
MATERIALHSS-E
THREADM6 x1
HEX SHANK1/4" Hex
HOLE5 mm
M6 Hex combination drill tap – 1/4-inch shank for a drill driver
Technical data and operating range of the tool
| Technical data | |
|---|---|
| Thread | M6 |
| Pitch | 1 mm |
| Drilling diameter | 5 mm |
| Overall length | 44 mm |
| Max. rpm | 800 rpm |
| Shank | hexagonal 1/4" (DIN 3126) |
| Material | HSS-E (HSS-Co5) |
| Thread tolerance | 6H |
| Hole type | through hole, material thickness 2-6 mm |
3-in-1 tool – drilling, tapping, and edge deburring
Design, hex shank, and applications
M6 Hex combination drill tap combines a 5 mm drill, an M6 tap and a deburring chamfer in a single body made of HSS-E high-speed steel. The drilling section produces the hole, the tapping section cuts an M6 x1 thread to tolerance 6H, and the tapered transition removes the burr from the entry edge – the burr on the exit side remains. The tip has a split point, so the tool centers itself and requires no center punching.
1/4-inch hex shank – combination drill tap for a cordless drill
The shank measures 6.35 mm and has a profile in accordance with DIN 3126, the same as screwdriver bits. The tool fits directly into a cordless drill's quick-release holder, a magnetic bit holder, or a bit extension. The drill must have reverse rotation – after cutting the thread, the tool is backed out in reverse. With an overall length of 44 mm, the body is short and rigid, limiting runout during handheld operation. However, the hex shank has slight play in the socket, so tool alignment must be maintained by hand.
- Three operations with one tool – a 5 mm hole, an M6 thread, and a chamfered edge without changing tools in the drill
- 1/4-inch shank in accordance with DIN 3126 – fits cordless drills, extensions, and magnetic holders
- Split point cutting tip – the tool centers itself; no center punch or center drill is needed
- Thread to tolerance 6H – an M6 screw threads in without reworking with a tap
- HSS-E steel (HSS-Co5) – the addition of cobalt increases the cutting edge's resistance to operating temperatures
- Material range: structural steels up to 600 N/mm², cast iron, aluminum, and brass
Where the M6 combination drill tap is used
M6 is the most commonly added mounting thread: ventilation duct flanges, frames, machine guards and sensor brackets. The tool works only in through holes, in material from 2 to 6 mm thick. A 6 mm wall provides full load capacity. After drilling, a hot-dip galvanized component requires coating repair in accordance with EN ISO 1461 – a minimum of 100 micrometers at the damaged area, which a single coat of zinc spray does not provide.
Operating parameters – rotational speed, cooling, and material selection
Cutting speeds for steel, cast iron, and nonferrous metals
Tapping is a low-speed operation. For steel, use a cutting speed of 6 m/min and convert it to rotational speed using the formula n = 1000 x vc / (3.14 x D): n = 1000 x 6 / (3.14 x 6) = approximately 320 rpm, corresponding to the drill's first gear. The manufacturer limits the M6 tool to 800 rpm – this speed can be used in aluminum, not in steel. Lubricate with tapping paste containing EP additives.
| Workpiece material | vc [m/min] | n [rpm] | Lubrication |
|---|---|---|---|
| P Structural steel up to 600 N/mm² | 5-8 | 270-420 | EP tapping paste |
| M Austenitic stainless steel | 5 | up to 270 | EP paste, occasional use |
| K Gray cast iron | 8-12 | 420-640 | dry, air blast for chip removal |
| N Aluminum, brass | 15-20 | up to 800 | kerosene or oil, dry for brass |
M6 drilling and tapping step by step
Operating procedure and tool limitations
Operation step by step
1Positioning
Split point: without a center punch
2Drilling
Hole: 5 mm
3Tapping
Rotational speed: 320 rpm
✓Thread and chamfer
Tolerance: 6H
Parameters for structural steel up to 600 N/mm² with tapping paste lubrication
▲
Application limitations
The tool is intended exclusively for through holes in material 2-6 mm – in a blind hole, the thread ends before the bottom. Do not use hammer mode or work in steels hardened above 45 HRC. Work without gloves: a ribbon chip wraps around the shank and can pull your hand in.
Customer questions about the M6 combination drill tap
Selection, tap drill hole, and operating parameters
Frequently asked questions
No. The tool drills a 5 mm hole itself, exactly the size required for the M6 x1 thread (rule: nominal diameter minus pitch). Center punching is also unnecessary – the split point centers on the surface without wandering.
No. Impact action bypasses the clutch, the only protection against twisting off the tool, and introduces abrupt speed changes during a phase in which the feed must match the thread pitch. Use a drill or drill driver with variable speed and reverse rotation.
Structural steels up to 600 N/mm², gray cast iron, aluminum and brass. Austenitic stainless steel only occasionally, at 5 m/min with EP paste – it work-hardens under the cutting edge. Hardened steels above 45 HRC are beyond the range of high-speed steel.
The M6 Hex combination drill tap made of HSS-E steel produces a 5 mm hole, an M6 x1 thread and an entry chamfer in a single operation. The 1/4-inch hex shank fits the quick-release holder of a cordless drill. At 320 rpm with EP paste, the tool maintains the thread profile throughout the operating cycle.
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Shipping
All orders are delivered by courier company GLS. For orders exceeding 369 PLN gross shipping is FREE
| 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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