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UNF 9/16-18 LH DIN 374 C L40 HSSE Fanar tapping
€45.32 tax inc.
Net price: €36.84
Description
Technical data for the left-hand 9/16-18 UNF machine tap
| Technical data | |
|---|---|
| nominal diameter d1 | 9/16-18 |
| helix angle | 40° |
| thread pitch P | 18 threads per inch |
| overall length l1 | 100 mm |
| flute length l2 | 25 mm |
| shank diameter d2 | 11 mm |
| square drive size | 9 mm |
| tap drill diameter | 12.3 mm |
| Chamfer | C (2÷3) P |
How a spiral flute tap evacuates chips from a blind hole
The 40° flute works like a screw conveyor
The flutes of this tap spiral to the left at an angle of 40° to the axis. The tap rotates counterclockwise and advances into the hole. Chips cut by the chamfer enter the flute, and the helix carries them upward, like the auger in a meat grinder. The bottom of the hole stays clear, and the cutting edges do not encounter compacted chips. The UNF 9/16-18 tap has a reduced shank according to DIN 374: diameter 11 mm, square size 9 mm.
1
The 40° spiral flute carries chips upward from the chamfer.
2
The stepped chip exits the hole and breaks into short pieces.
3
The tap rotates counterclockwise – this is how it cuts a left-hand thread.
4
Chamfer C: 2–3 incomplete threads on the tapered lead.
5
Clearance below the tap tip – min. 2 thread pitches above the bottom.
6
The UNF 9/16-18 thread has 18 threads per inch; the feed is approximately 1.411 mm/rev.
Left-hand 9/16-18 UNF American machine tap for stainless steel
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| 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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