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Description
Technical data for the 3/8-24 UNF machine tap
| Technical data | |
|---|---|
| nominal diameter d1 | - 3/8-24 |
| thread pitch P | 24 threads per inch |
| overall length l1 | 100 mm |
| flute length l2 | 20 mm |
| shank diameter d2 | 10 mm |
| square drive size | 8 mm |
| tap drill diameter | 9 mm |
| Chamfer | C (2÷3) P |
Where chips remain in a straight-flute tap
The flute holds the chips until the tap is reversed out
The straight flute runs parallel to the tap axis. There is no helix to carry chips upward. The chamfer cutting edges are not ground at an angle, so they do not push chips downward. Short chips break into fragments and remain in the flute beside the cutting edges that produced them. They leave the hole only when the tap is reversed out. The UNF 3/8-24 tap has a reduced shank in accordance with DIN 374: diameter 10 mm, square 8 mm.
1
Straight flute – chips remain in the flute, next to the cutting edges that produced them.
2
Chamfer C: 2–3 incomplete threads on the tapered lead.
3
The tap rotates clockwise to cut a right-hand thread.
4
Individual fragments exit at the top, onto the workpiece surface.
5
A few fragments fall below the tip and exit through the bottom of the hole.
6
The UNF 3/8-24 thread has 24 threads per inch; the feed is approximately 1.058 mm/rev.
3/8-24 UNF American machine tap
High quality 3/8-24 UNF machine tap with a reduced shank for steel and stainless steel. Designed for cutting American Unified threads with a diameter of 3/8 inch and 24 threads per inch. These are UNF fine inch threads. The thread profile is triangular with an angle of 60°, and the tolerance class of the threads produced is 2B. Unified machine taps of this type are manufactured according to DIN 374 from special HSSE high-speed steel.
This steel offers good cutting performance as well as increased hardness and durability. The cutting edges resist breakage, cracking, chipping, and rapid dulling even under demanding operating conditions. Our 3/8-24 UNF machine taps are suitable for tapping materials in categories P1.2 – P1.3. These include carbon (unalloyed) steels, metals, copper, brass, aluminum, and plastics. The properties of high-speed steel (HSS) give the taps a very long service life, resulting in a noticeable reduction in machining costs.
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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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