Long cylindrical drills for metal with uh shank are one of the most common consumables. Among the numerous groups of classifications, tools are divided according to the material of manufacture, purpose, shape of the shank, the working part adjacent to it. This type of product is widely used in industry. The convenient conical connector ensures high mounting density on the equipment. Due to reliable fixation on the machine, accurate drilling of the material is ensured.
Technical characteristics
The model with a cylindrical shank is used for hand tools - a drill, a screwdriver. If it is necessary to work with types of metal products, such as cast iron, carbon steel, non-ferrous metal, then a drill with an elongated shank is used.
This type of drill is classified as a standardized product. The characteristics of the consumable are determined by GOST. High speed steel is used for the production of tools. Among the distinguishing features are:
High fracture resistance.
Product diameter - 1 to 20 mm.
Drill length is - 56 to 254 mm.
Toe angle. Increased angle - the possibility of processing a dense product of a large size.
Long service life, tool sharpening is rarely carried out.
You can make through or blind holes.
How to choose a consumable
Before choosing a drill of the desired diameter, sharpening angle, you should set the purpose of the work, as well as the model of the working tool. When choosing a long drill, important parameters must be taken into account:
Take into account the product marking. The depth and diameter of the hole that can be obtained is determined. Also a material with which you can work.
The cutting part of the drill with a sharpening angle of 135 degrees. So the productivity of the consumable will be higher.
The color of the surface of the tool. The part is covered with a bright gold coating of titanium nitride. They do this to increase the strength of the product. The long drill works in the conditions of the increased loading. Additional processing increases its wear resistance.
It is better to order the necessary tools in the online store. The cost of products will be lower. If it’s difficult to sort out the assortment on your own, the site manager will help. Each position of the type of drills is described in detail, the store employee will help you understand the parameters, tell you about the correct choice.
