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B-series tapers are a DIN standard (DIN 238) typically used for fitting chucks on their arbors, like the older Jacobs taper series. Each taper in the B-series is effectively the small or large end of a Morse taper: B10 = small end of MT1 (D = 10.095 mm) B12 = large end of MT1 (D = 12.065 mm) B16 = small end of MT2 (D = 15.733 mm)
where is the tap drill size, is the major diameter of the tap (e.g., 10 mm for a M10×1.5 tap), and pitch is the pitch of the thread (1.5 mm in the case of a standard M10 tap) and so the correct drill size is 8.5 mm. This works for both fine and coarse pitches, and also produces an approximate 75% thread.
The PM-63 RAK (often incorrectly referred to as Ręczny Automat Komandosów—"commandos' hand-held automatic"; the name itself means cancer or crayfish in Polish) is a Polish 9×18mm submachine gun, designed by Piotr Wilniewczyc in cooperation with Tadeusz Bednarski, Grzegorz Czubak and Marian Wakalski. [1]
The clamp is opened to insert the tool and then tightened down against the tool to secure it. This type of tap wrench is used with larger taps and where there is room to turn a larger wrench. [1] A T-handle is more compact. This type of wrench uses a collet to secure the tool. The collet design has two pieces: a threaded "nosecap" and four ...
There are also two little-known cartridges of the Whisper Family based on handgun cartridge cases. These are the 7.62 Micro Whisper, based on the .30 Luger case; and the 7.63 Mini-Whisper, based on the .30 Mauser case. Like the rest of the Whisper Family, these two cartridges are designed to fire rifle bullets at subsonic velocities.
However, recent studies have confirmed the existence of both Type 63 and Type 65. Many sources state that the armament are paired "Type 63" anti-aircraft guns, however the Type 65 is the more likely armament, as the Type 63 AA gun is not mentioned in any sources beyond references to this self-propelled anti-aircraft gun. This could be due to ...
An HSK (Level 6) Examination Score Report. The Hanyu Shuiping Kaoshi (HSK; Chinese: 汉语水平考试; pinyin: Hànyǔ Shuǐpíng Kǎoshì), translated as the Chinese Proficiency Test, [1] is the People's Republic of China's standardized test of proficiency in the Standard Chinese language for non-native speakers.
Thermosyphon circulation in a simple solar water heater (not a working model; there is no water supply to replenish the tank when the tap is used). A thermosiphon (or thermosyphon) is a device that employs a method of passive heat exchange based on natural convection, which circulates a fluid without the necessity of a mechanical pump.