Easy and quick change due to short design, advantageous for confined working areas.
The self-tightening effect works only for clockwise rotation.
Keyed chucks are engineered to either loosen or tighten the hold on a tool by using a key. Keyed chucks offer the advantage of applying additional torque on the bit when slippage is a concern during heavy-duty applications.
Keyless chucks are engineered to quickly loosen and tighten a tool on the chuck collar of the drill, either by manual operation or when torque is applied. Rotating the chuck collar in a counterclockwise direction will loosen the tool.
Hybrid drill chucks are engineered with both keyed and keyless systems. The keyless portion automatically tightens, while the keyed portion is adjusted on the chuck to offer added gripping and torque support on the tool.
L-form shaft, ball point can be applied up to an angle of 30°.
Surface nickel-plated and powder-coated. Edges slightly bevelled.
Maximum hardness with special toughness due to PB Swiss Tools special alloy.
A power tool is a tool that is actuated by an additional power source and mechanism other than the solely manual labor used with hand tools. The most common types of power tools use electric motors. Internal combustion engines and compressed air are also commonly used. Other power sources include steam engines, direct burning of fuels and propellants, or even natural power sources like wind or moving water. Tools directly driven by animal power are not generally considered power tools.
Power tools are used in industry, in construction, in the garden, for housework tasks such as cooking, cleaning, and around the house for purposes of driving (fasteners), drilling, cutting, shaping, sanding, grinding, routing, polishing, painting, heating and more.
Power tools are classified as either stationary or portable, where portable means hand-held. Portable power tools have obvious advantages in mobility. Stationary power tools however often have advantages in speed and accuracy, and some stationary power tools can produce objects that cannot be made in any other way. Stationary power tools for metalworking are usually called machine tools. The term machine tool is not usually applied to stationary power tools for woodworking, although such usage is occasionally heard, and in some cases, such as drill presses and bench grinders, exactly the same tool is used for both woodworking and metalworking.
Electrical Discharge Machining (EDM), a manufacturing process whereby a desired shape is obtained using electrical discharges, is primarily used to cut hard metals and other materials that would be impossible to machine with traditional techniques. Sometimes referred to as “spark machining” or “spark eroding”, EDM is a non-traditional method of removing material by a series of rapidly recurring electric arcing discharges in the presence of an energetic electric field. EDM can cut small or odd-shaped angles, intricate contours or cavities in pre-hardened steel.
The EDM cutting tool is guided along the desired path. Consecutive sparks produce a series of micro-craters on the workpiece and remove material along the cutting path by melting and vaporization. The particles are washed away by the continuously flushing dielectric fluid. It is also important to note that a similar micro-crater is formed on the surface of the electrode. These micro-craters result in the gradual erosion of the electrode, many times requiring several different electrodes of varying tolerances to be used or, in the case of wire EDM machining, constant replacement of the wire by feeding from a spool.
Wire-cutting EDM is commonly used when low residual stresses are desired. Wire EDM has no added residual stress because it has no cutting forces. There is little change in the mechanical properties of a material in wire-cutting EDM due to these low residual stresses.
CNC technology and the features and functions of machining centers. • the basic vertical knee mill machine is examined. • the parameters for successful metal removal are defined. • the application of CNC technology to milling is explained. • machining center features and functions are highlighted. • various cutting tools • various accessories.
