MIL-STD-1913accessory mounting rail

Drills for steel machining are specially designed. They have a higher-rigidity flute-cross-section than drills designed for machining cast iron or light alloy. They also have a special chisel edge geometry to improve the initial machining performance. The cutting edge and flute shape are designed to improve chip control. They are also designed with coolant holes to improve chip disposal and cooling of the cutting edge.

Picatinny pronunciation

In general, increasing quenching hardness improves wear resistance and tool life. However increased quenching hardness can result in problems such as breakage and chipping, depending on how a drill is used. Drill material and quenching hardness are important factors in determining drill performance.

Due to some technical difficulties the indexable drills only came into practical use 10 to 15 years after turning and milling tools were introduced. In the early 1980s indexable drills started to become popular.

We want to ensure that making a return is as easy and hassle-free as possible! If for any reason you are not satisfied with your purchase, simply return the item within 30 days of receipt, and we'll cover the cost of return shipping. Learn more about our Return Policy.

Picatinny rail vs Weaver

mil-std1913rail dimensions

Solid carbide drills, if used correctly, can play a decisive role in increasing machining efficiency, tool life and hole accuracy. One downfall with solid carbide drills is that they have lower toughness when compared to high-speed steel drills.

Steve has never not known guns. Before motorcycles, money, or girls, they have always been part of his life. He was tenured as General Manager of one of the country's largest gun stores and ranges, a buyer in a big box outdoor sporting goods store, and is currently OpticsPlanet's Director of Product Intelligence. He was a US Navy nuclear gunners mate, a private investigator, and is an NRA certified instructor in ten categories, as well as an Illinois CCW instructor. He shoots competitively and has hunted from Alaska to Africa. He thoroughly loves life with his beloved wife, Shirley, and together they live with their three wildish dogs Tinker, TranRek, and Crash Almighty. He is a stubborn stage 4 cancer survivor and isn't ready to cash in his chips yet.

1913Picatinny Rail Adapter

Shop now and get Free Value Shipping on most orders over $49 to the contiguous 48 states, DC, and to all U.S. Military APO/FPO/DPO addresses.

Continue following Steve's gun-laden lifestyle with never-ending firearm excursions and experiments with related products! Visit his blog page at Riflescopeblog.com.

Depending on the workpiece material and cutting conditions then the type of drill to be selected will vary. A commonly used material is JIS SKH51. Recently, cobalt-based dissolution type, high vanadium or high cobalt-based powder-metal is used for longer tool life, higher machining efficiency and longer drilling length. Vanadium (V) is effective in increasing wear resistance and cobalt (Co) is effective in increasing hot hardness.

1913rail vs Picatinny

Most of the drills that are marketed today are PVD (physical vapour deposition) coated. PVD coating prevents damage caused by welding between the tool and the workpiece material and improves the overall wear resistance properties.

Indexable type drills are drills that use inserts as the cutting edge. As the inserts of indexable type drills are changeable, it is possible to select a tool grade and a breaker that are suitable for a particular workpiece material. The cutting conditions can also be selected from a wide range. In addition, the need for a regrinding process and the regrinding facilities becomes irrelevant.

mil-std-1913pdf

Toll-Free: +1-800-504-5897 Intl.: +1-847-513-6201 Fax: +1-866-534-3097 Email: sales@opticsplanet.com

With recent improvements and developments of the machines that use of solid carbide drills however the use of solid carbide drills is becoming more commonplace.

Picatinny rails are similar to Weaver rails (bases), and have a standardization first published by the Picatinny arsenal in 1913. The major difference between Weaver rails and Picatinny rails is the width of the crosswise cuts in them. Picatinny bases have wider slots. The recoil lugs under picatinny rings are thicker to correspond to the wider slots in picatinny bases. Therefore, Weaver rings will fit on picatinny bases, but picatinny rings won't fit on Weaver bases. This is how it's supposed to work, but Weaver style base manufacturers have been cutting thicker slots in their bases to accommodate picatinny rings, and picatinny ring manufacturers have started to put smaller recoil lugs on their rings. The instances of an actual picatinny specification ring not fitting on any Weaver style or picatinny rail are few, and not something to be overly concerned about unless we're talking about the very best mil-spec equipment. Some Picatinny rings are tightened with a torque wrench to a certain number of inch-pounds for repeatability.