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Die M72X1.5 LH HSS DIN 22 568 Cztool
0000008995
Thread size: M72x1,566 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
€304.26 tax inc.
Net price: €247.37
Description
Technical data for the M72x1.5 left-hand die
| Technical data | |
|---|---|
| Thread size D1 | M72x1.5 left-hand |
| Thread Pitch P | 1.5 mm |
| Outside Diameter D2 | 120 mm |
| Thickness H1 | 22 mm |
| Number of Chip Holes | 9 |
| Required Shaft Diameter | 71.85 mm |
Die M72x1.5 left-hand HSS DIN 22 568 – large-diameter left-hand fine thread
The M72x1.5 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 fine thread with a pitch of 1.5 mm. This unique combination is used in large rotating machinery where the direction of rotation during operation could cause a standard right-hand thread to loosen, while increased vibration resistance provided by the fine pitch is also required. Compliance with DIN 22 568 and a tolerance of 6g ensure a proper fit with 6H left-hand nuts. This tool is intended for specialized workshops servicing heavy industry, large machinery, and safety-critical structures.
Key benefits of the M72x1.5 left-hand fine-thread die
- Left-hand metric fine thread – combining a left-hand thread with a fine pitch of 1.5 mm provides dual protection against loosening: mechanical (direction) and design-based (fine pitch increasing friction)
- Diameter of 72 mm for large machinery – the size makes the tool suitable for large shafts, studs, and structural components in heavy industry requiring a left-hand thread
- HSS steel hardness of 64 HRC – guarantees long service life when cutting left-hand threads in structural steels up to 800 MPa despite the large diameter and fine pitch generating high cutting forces
- 6g tolerance according to ISO – standard fit with normal clearance allows left-hand nuts to be installed freely without binding in typical industrial applications
- Solid round construction – the non-segmented design provides the maximum rigidity required for precision cutting of large-diameter left-hand fine threads
The M72x1.5 left-hand die is a solution for specialized workshops servicing large rotating machinery, turbines, large grinding machines, and industrial equipment where the direction of rotation requires a left-hand thread and operating conditions also require a fine thread. It is particularly useful in the power industry, mining machinery, and steel structures with extreme requirements. Due to the specific characteristics (left-hand thread, large diameter, fine pitch), threading requires a highly skilled operator, holders with maximum rigidity, intensive lubrication, and preferably a power drive.
Frequently asked questions
This combination is used in large rotating machinery (turbines, drive shafts of large grinding machines) where the direction of rotation requires a left-hand thread, and extreme operating conditions (vibration, dynamic loads) also require a fine thread for maximum protection against loosening.
The recommended material diameter is 71.6 to 71.7 mm. Thread direction (left-hand or right-hand) does not affect blank diameter requirements – these are determined solely by the nominal diameter and thread pitch.
Yes, the operator must remember the reversed direction of rotation (counterclockwise instead of clockwise) and follow the same reversal rule – after every two full counterclockwise turns, reverse half a turn clockwise to break the chips. This requires retraining habitual movements.
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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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