Polski 
- 98% satisfied customers
- 72h delivery
- 30 dni na zwrot
Description
Technical data for the UNF 1.1/8-12 straight-flute machine tap
| Technical data | |
|---|---|
| nominal diameter d1 | 1.1/8-12 UNF |
| thread pitch P | 12 threads per inch |
| overall length l1 | 150 mm |
| flute length l2 | 27 mm |
| shank diameter d2 | 22 mm |
| square drive size a | 18 mm |
| Chamfer | C (2÷3) P |
| tap drill diameter | 26.5 mm |
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 1.1/8-12 tap has a reduced shank in accordance with DIN 374: diameter 22 mm, square 18 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 1.1/8-12 thread has 12 threads per inch; the feed is approximately 2.117 mm/rev.
UNF 1.1/8-12 machine tap for blind holes
High-quality professional machine tap 1.1/8-12 UNF American fine thread with a short chamfer (2-3 threads) - features straight flutes. Manufactured by Narex, with a reduced shank for general-purpose cutting of Unified fine threads, type UNF, diameter 1.1/8 inch, with a 60° angle, ANSI B-1.1. Chamfer C (2-3 P) – for through and blind holes in short-chipping materials. The tap is suitable for tapping nuts in materials designated P1.2 – P1.3, including unalloyed steels, metals, metal alloys (bronze, brass), copper, aluminum, zinc, nonferrous metals, magnesium alloys and thermoplastics. The tolerance class of the finished threads is ISO2-6H. 1.1/8-12 machine tap offers high resistance to demanding cutting conditions, particularly the elevated temperatures generated during cutting (up to 600°C). The cutting edge of the tap resists breakage, cracking, edge fracture, chipping and dulling. Another important feature is its ability to achieve high machining productivity. This reduces machining time and machine operator labor costs. Another advantage of the tap is its ability to produce highly accurate threads. The tap complies with DIN 374.
Product accessories
Reviews
No customer reviews for the moment.
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 |
Recommended for you
This website uses its own and third-party cookies to improve our services and show you advertising related to your preferences by analyzing your browsing habits. To give your consent to its use, press the Accept button.
Cookie preferences
Functional cookiesTechnical
Functional cookies are strictly necessary to provide the services of the shop, as well as for its proper functioning, so it is not possible to refuse their use. They allow the user to browse through our website and use the different options or services that exist on it.
Advertising Cookies
These are cookies that collect information about the advertisements shown to users of the website. They can be anonymous, if they only collect information about the advertising spaces shown without identifying the user, or personalised, if they collect personal information about the user of the shop by a third party, for the personalisation of these advertising spaces.
Analytics cookies
Collect information about the user's browsing experience in the shop, usually anonymously, although sometimes they also allow the user to be uniquely and unequivocally identified in order to obtain reports on the user's interests in the products or services offered by the shop.