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A string trimmer, also known by the portmanteau strimmer and the trademarks Weedwacker, Weed Eater and Whipper Snipper, [1] [a] is a garden power tool for cutting grass, small weeds, and groundcover. It uses a whirling monofilament line instead of a blade, which protrudes from a rotating spindle at the end of a long shaft topped by a gasoline ...
Below is a comprehensive drill and tap size chart for all drills and taps: Inch, imperial, and metric, up to 36.5 millimetres (1.44 in) in diameter. In manufactured parts, holes with female screw threads are often needed; they accept male screws to facilitate the building and fastening of a finished assembly.
Rope may be constructed of any long, stringy, fibrous material (e.g., rattan, a natural material), but generally is constructed of certain natural or synthetic fibres. [1] [2] [3] Synthetic fibre ropes are significantly stronger than their natural fibre counterparts, they have a higher tensile strength, they are more resistant to rotting than ropes created from natural fibres, and they can be ...
The ends of individual strands of this eye splice used aboard a cargo ship are served with natural fiber cord after splicing to help protect seamens' hands when handling. An eye splice may be used to terminate the loose end of a wire rope when forming a loop. The strands of the end of a wire rope are unwound a certain distance, then bent around ...
Here σ c is the critical fracture stress, d the crystallite size and σ 0 and k gb are constants. If a material is brittle its strength depends mainly on the resistance to forming microcracks. The critical stress which causes the growth of a microcrack of size a 0 is given by a general formula [ 57 ]
The round was designed with a possible military need for a cartridge for anti-personnel, anti-sniper, and anti-materiel roles with a (supersonic) precision range of 2,200 yards (2,000 m). It is offered as a competitor to the most common military NATO long-range service cartridges, such as .338 Lapua Magnum and the .50 BMG .
The M21 sniper weapon system (SWS) in the US Army is a national match grade M14 rifle, selected for accuracy, and renamed the M21 rifle. [7] The M21 uses a commercially procured 3–9× variable power telescopic sight, modified for use with the sniper rifle. [8] It is chambered for the 7.62×51mm NATO cartridge.
Type 97 Sniper Rifle: Arisaka: 6.5×50mmSR Arisaka: Bolt-action Japan: 1937 Type 99 sniper rifle: 7.7×58mm Arisaka: Bolt-action Japan: 1939 AMU SDM-R: United States Army Marksmanship Unit: 5.56×45mm NATO: Direct impingement (select-fire) United States: 2004 Snipex T-Rex: XADO-Holding Ltd. 14.5×114mm: Bolt-action (single-shot) Ukraine: 2020 ...