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Description
Note!
The tap is designed for machining nonferrous materials such as aluminum.
Technical data for the 3/4-10 UNC machine tap
| Technical data | |
|---|---|
| nominal diameter d1 | 3/4-10 |
| helix angle | 15° |
| thread pitch P | 10 threads per inch |
| overall length l1 | 125 mm |
| flute length l2 | 32 mm |
| working length l3 | 25 mm |
| shank diameter d2 | 14 mm |
| square drive size | 11 mm |
| tap drill diameter | 16.5 mm |
| Chamfer | C (2÷3) P |
How a spiral flute tap evacuates chips from a blind hole
The 15° flute works like a screw conveyor
The flutes of this tap spiral to the right at an angle of 15° 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 3/4-10 tap has a reduced shank according to DIN 376: diameter 14 mm, square size 11 mm.
1
The 15° 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 3/4-10 thread has 10 threads per inch; the feed is 2.54 mm/rev.
3/4-10 UNC American machine tap
Modern 3/4-10 UNC machine tap with an extended shank, for cutting American Unified inch threads of the UNC type with a standard coarse pitch. Thread diameter 3/4, 10 threads per inch. Form C chamfer – for through holes and blind holes in materials producing short chips. Triangular thread profile, 60° angle, tolerance class of the threads produced: 2B. Our 3/4-10 UNC machine taps for Unified threads are intended for both individual customers and large manufacturing plants. They enable highly productive machining, significantly reducing machining time and improving utilization of existing machine tools. This substantially reduces labor costs. Designed for tapping aluminum.
Product accessories
HSSE 16.5 cobalt metal drill bit DIN 338
Reference: 13295 In stock < 10 items
€17.63
€21.69 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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