Guide Bushings and Drill Bushings Information
Guide bushings and drill bushings are used to guide drills, punches, pillars, or other tools. A bushing may be attached to the drill or rotary tool, or inserted into a jig to control hole location and depth. Bushings are used to guide leader or ejector pins on injection molds or punches on presses. A drill guide is used for precise and accurate hole drilling.
There are many types of drill guide. Examples include:
- drill and tap guide
- drill bit guide
- punch guide
- pillar guide
A drill and tap guide consists of an elongated body in longitudinal axis with the top and bottom and two sides. A drill bit guide is a self centering guide that is featured with a spring loaded end used to locate hinge screw holes and an HSS twist drill bit. A punch guide is used to punch thin plastic, metals, and paper. A pillar guide consists of a revolving drill bit that moves against the clamped material on which the hole has to be made. A drill bushing that is attached to the drill is used to connect or hold two parts together and the ejectors pin can be made of various metals. Other guides and drill bushings are commonly available.
There are several ways in which guide bushings and drill bushings function. A drill guide is capable of providing accurate drilling even at angles up to 45°. A drill guide is made of anodized aluminum and a standard drill bit of size 3/16" connected to the drill guide. In a drill and tap guide, the drill guide helps to drill precise holes at angles to the surface and the tap ensures that the same hole would be tapped at an exact angle to provide better tapped holes. A drill bit guide is available with a drill bit size of 5/64". A drill bit guide ensures exact alignment while drilling holes in hinges and other ironmongery. While using a pillar guide, the speed of the rotating chuck can be adjusted by altering the pulley belt system, which is mounted at the top of the machine. Guides and drill bushings are designed and manufactured to meet most industry specifications.
Guide bushings and drill bushings are used in many applications. Examples include the automotive industry, medical services, and aerospace and telecommunication industries. Guide bushings and drill bushings are also used in various industrial applications for machining plastics, metals, and other materials.