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Die M72X4 LH HSS DIN 22 568
0000013583
Thread size: M72x466 sizes of this die
M4x0,5M6x0,8M7x0,5M9x1M10x0,75M10x1M10x1,25M11x1M12x0,5M12x1M12x1,25M13x1,25M14x1M14x1,25M14x1,5M15x1M15x1,5M16x0,75M16x1M16x1,25M16x1,5M18x0,5M18x1M18x1,25M18x1,5M18x2M20x1M20x1,5M20x2M22x1,5M22x2M24x1M24x1,5M24x2M25x1M25x1,5M26x1,5M27x1,5M27x2M28x1M28x1,5M28x2M30x1,5M30x2M30x2,5M30x3M32x1,5M32x2M36x1,5M38x1,5M40x1,5M42x1,5M48x1,5M48x2M48x3M50x1,5M52x1,5M56x1,5M70x1,5M70x2M72x1,5M72x4M75x1,5M75x2M76x1,5M82x1,5
€427.26 tax inc.
Net price: €347.37
Description
Technical data for the M72x4 left-hand die
| Technical data | |
|---|---|
| Thread size D1 | M72x4 left-hand |
| Thread Pitch P | 4 mm |
| Outside Diameter D2 | 120 mm |
| Thickness H1 | 36 mm |
| Number of Chip Holes | 8 |
| Required Shaft Diameter | 71.60 mm |
Die M72x4 left-hand HSS DIN 22 568 – large-diameter left-hand coarse thread
The M72x4 left-hand die is a specialized round tool made of high-speed steel (HSS) with a hardness of 64 HRC, combining a large diameter of 72 mm with a left-hand thread with a coarse pitch of 4 mm. A left-hand thread is cut in the direction opposite to the standard direction, preventing self-loosening in large rotating machinery where components rotate clockwise during operation. The coarse pitch of 4 mm also enables very fast thread cutting while maintaining sufficient mechanical strength. Compliance with DIN 22 568 and the 6g tolerance ensure proper mating with 6H left-hand nuts. This tool is intended for specialized workshops servicing the largest machinery and rotating equipment requiring left-hand threads at very large diameters.
Key advantages of the M72x4 left-hand coarse-pitch die
- Left-hand thread at a diameter of 72 mm – the left-hand direction prevents loosening in the largest rotating machines, gearboxes, and large equipment where a standard right-hand thread could loosen during operation
- Coarse pitch of 4 mm for maximum efficiency – the coarsest pitch increases threading speed by as much as 50-60 percent compared with a pitch of 2 mm while maintaining adequate strength in assemblies with left-hand threads
- Diameter of 72 mm for large structures – a size used in the largest industrial gearboxes, very large grinding machines, and machinery requiring left-hand threads at very large diameters
- HSS steel hardness of 64 HRC – ensures long service life when cutting left-hand threads in structural steels up to 800 MPa at large diameters and coarse pitches
- Solid round construction – the one-piece construction provides the maximum rigidity essential for cutting large-diameter left-hand threads with a coarse pitch
The M72x4 left-hand die is a solution for the most specialized workshops servicing the largest rotating machines, large industrial gearboxes, very large grinding machines, and equipment where the direction of rotation requires a left-hand thread at very large diameters, while a coarse pitch ensures maximum process efficiency. Due to the extreme combination (left-hand + coarse pitch + large diameter), threading requires a mechanical drive, highly rigid industrial holders, and highly qualified operators experienced in large-diameter left-hand threads.
Frequently asked questions
The tool is designed for cutting left-hand threads on very large spindles, gearbox drive shafts, and heavy machinery components that rotate clockwise. Combining the left-hand direction with a pitch of 4 mm instead of the standard 6 mm ensures enhanced resistance to loosening under substantial loads.
The M72x4 left-hand version has the opposite thread direction and a pitch of 4 mm instead of the standard 6 mm. This difference in pitch by a factor of one and a half, together with the left-hand direction, increases the thread contact area and provides greater joint stability in large structural components.
Rotate the tool counterclockwise, using a dedicated lubricant. After each turn, back the die off clockwise by half a turn to remove chips. Due to the very substantial diameter, clamping the rod in a swivel vise or using an end support is recommended.
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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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