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Description
Technical data for the 7/16-14 UNC machine tap
| Technical data | |
|---|---|
| nominal diameter d1 | 7/16-14 |
| helix angle | 37° |
| thread pitch P | 14 threads per inch |
| overall length l1 | 100 mm |
| flute length l2 | 22 mm |
| working length l3 | 15 mm |
| shank diameter d2 | 8 mm |
| square drive size | 6.2 mm |
| tap drill diameter | 9.3 mm |
| Chamfer | C (2÷3) P |
How a spiral flute tap evacuates chips from a blind hole
The 37° flute works like a screw conveyor
The flutes of this tap spiral to the right at an angle of 37° to the axis. The tap rotates clockwise 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 UNC 7/16-14 tap has a reduced shank according to DIN 376: diameter 8 mm, square size 6.2 mm.
1
The 37° spiral flute carries chips upward from the chamfer.
2
The stepped chip exits the hole and breaks into short pieces.
3
The tap rotates clockwise to cut a right-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 UNC 7/16-14 thread has 14 threads per inch; the feed is approximately 1.814 mm/rev.
7/16-14 UNC American machine tap for stainless steel
Professional 7/16-14 UNC machine tap with an extended reduced shank, compliant with DIN 376. Designed for cutting Unified coarse threads with a standard pitch. These are UNC inch threads, diameter 7/16, 14 threads per inch, with spiral flutes. The tolerance class of the threads produced is 2B. Form C chamfer (2 – 3 P) – for tapping through holes and blind holes in materials producing short chips. Our Unified machine taps feature enhanced durability, hardness, and wear resistance at high temperatures up to 600°. They are made from special HSSE high-speed steel. 7/16-14 UNC machine taps made from this steel increase cutting productivity, tool durability, and service life. Shorter machining times allow efficient use of existing machine tools while reducing overall machining costs. These tools are intended for machining materials in classes P1.2 – P1.3.
Product accessories
Hand tap UNC 7/16-14 DIN 352/2 HSS 2B Fra
Reference: 0000007803 In stock < 10 items
€15.79
€19.42 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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