Drilling holes in glass with a hollow core drill bit.
The hollow core drill bit is also known as core drill bit, hole opener, center drill bit, steel plate drill bit, magnetic drill bit, steel rail drill bit and so on.
Classification of drills: high speed steel drills, tungsten carbide drills, tungsten steel drills.
Cutting depth: 25mm, 35mm, 50mm, 75mm, 100mm.
Expanded Information
Drill Structure
Three Combination Edge Structure of the cutting edge, unequal tooth spacing, and the special tungsten carbide cutting edge are the unique technology of Hengfeng " EST". EST" unique technology is the crystallization of the three combined edge consists of a number of outer edge, center edge, inner edge. Each cutting edge is only responsible for about 1/3 of the workload during the cutting process, and there are cutting knives on the inside of each cutting edge. Therefore, it can make the chip removal very smooth.
The hollow core drill bit edge is made of cemented carbide, with three-layer end tooth geometry, fast cutting, long service life of the steel plate drill bit, and double-cutting flat shank interface, which is suitable for imported magnetic drill rigs such as FEIN from Germany. Carbide drills are also suitable for all kinds of vertical drilling machines, rocker arm drilling machines, milling machines, lathes and so on.
Categorization of hollow core drills: according to the material there are alloy, tool steel. Hollow core drilling is mainly used for materials harder materials, and tool steel is generally used for materials softer materials, for these two kinds of drills tool steel is relatively cheap. Price: the market price of more than 1 hundred to more than 2 hundred on the market.
Baidu Encyclopedia - Hollow core drills