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Die M20X1.5 LH HSS DIN 22 568 Poland
Net price: €17.11
Description
Technical data for the M20x1.5 left-hand die
| Technical data | |
|---|---|
| Thread size D1 | M20x1.5 left-hand |
| Thread Pitch P | 1.5 mm |
| Outside Diameter D2 | 45 mm |
| Thickness H1 | 14 mm |
| Number of Chip Holes | 6 |
| Required Shaft Diameter | 19.85 mm |

Die M20x1.5 left-hand HSS DIN 22 568 – tool for left-hand threads
The M20x1.5 left-hand die is a specialized round tool made of high-speed steel (HSS) with a hardness of 64 HRC, designed for cutting external left-hand threads with a diameter of 20 mm and a pitch of 1.5 mm. A left-hand thread is cut in the opposite direction to a standard thread – it screws on counterclockwise. Compliant with DIN 22 568, it ensures precise thread cutting to tolerance 6g, compatible with 6H left-hand nuts. The tool is used in mechanical assemblies where components rotate clockwise during operation and require protection against self-loosening.
Key advantages of the M20x1.5 HSS left-hand die
- Left-hand thread with a pitch of 1.5 mm – prevents components from self-loosening in rotating machinery where the operating direction would loosen a standard right-hand thread
- High-speed steel HSS 64 HRC – guarantees high wear resistance when cutting threads in structural steels with a tensile strength of up to 800 MPa and nonferrous materials
- 6g tolerance according to ISO – standard fit class providing normal clearance with 6H left-hand nuts, allowing easy assembly without binding
- Solid round construction – construction without separate segments eliminates the risk of loss of geometry and ensures stability when cutting left-hand threads at increased torque
- Compliance with DIN 22 568 – standardized external dimensions simplify tool holder selection and guarantee versatile mounting in workshop systems
The M20x1.5 left-hand die is a solution for machine shops and maintenance departments specializing in repairs of rotating machinery, power tools, and industrial equipment. It is particularly useful in the production of shafts, pins, and transmission components where a standard right-hand thread could loosen during operation. Use with threading lubricants is recommended to extend cutting edge life and achieve a smooth thread surface.
Frequently asked questions
A left-hand die cuts a thread by rotating counterclockwise (to the left). This is the opposite of standard threading, where the tool rotates clockwise. It is important to maintain perpendicular alignment to the rod axis.
Left-hand threads are used in angle grinders, circular saws, bicycle wheels, and other rotating equipment where the direction of rotation could cause a standard right-hand thread to loosen. They provide additional mechanical security.
Yes, the material specifications are identical. The M20x1.5 HSS left-hand die works effectively in structural steels with a tensile strength of up to 800 MPa, aluminum, brass, and gray cast iron at a maximum hardness of 37 HRC. The only difference is the thread direction.
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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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