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Description
Technical data for the M39 left-hand die
| Technical data | |
|---|---|
| Thread to Be Cut d1 | M39 |
| Thread Pitch P | 4 mm |
| Outside Diameter d2 | 75 mm |
| Thickness h1 | 30 mm |
| Number of Chip Holes | 7 |
| Required Shaft Diameter | 38.70 mm |

M39 left-hand HSS die – a professional tool for larger-diameter opposite-hand threads
The M39 left-hand HSS die is a high-strength tool designed for cutting external threads left-hand with a diameter of 39 mm and a pitch of 4 mm. Its enlarged construction, measuring 75 x 30 mm, ensures maximum stability when machining heavy components, while high-speed steel (HSS) ensures cutting edge durability under intensive use.
Features of the M39 left-hand die for industrial applications
- Left-hand geometry (LH) allows connections resistant to self-loosening to be made in rotating mechanisms and structures subjected to varying loads
- HSS high-speed steel enables efficient machining of structural, stainless, and alloy steels with tensile strengths up to 800 MPa
- Enlarged dimensions of 75 x 30 mm provide the increased mass and rigidity needed for reliable guidance when threading large diameters
- Compliance with DIN 22 568 confirms 6g tolerance and compatibility with standardized fasteners
- Form B tapered chamfer ensures precise centering and clean formation of the initial thread turns
The M39 left-hand die is suitable for producing industrial turbine shafts, fastening screws for wind power applications, components for large bearing pullers, and connections in construction machinery. Ideal for projects where size and loads require a reliable opposite-hand thread. Choose industrial quality – M39 LH HSS die ensures reliable results in every task requiring a precise left-hand thread.
Frequently asked questions
They are used in industrial turbines, wind power applications, large bearing pullers, and construction machinery – wherever dynamic loads require protection against unscrewing.
No, the threading technique is identical to that used with standard versions. Simply remember that the direction of rotation is counterclockwise.
The outside diameter of 75 mm requires a correctly sized holder. Standard industrial die stocks provide full compatibility with the tool.
Product accessories
Machine Tap M39 LH DIN 376 B HSSE OX
Reference: 0000011082 In stock < 10 items
€113.29 brutto
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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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