What Is A Router Bit?
A router bit is a cutting tool used with a router to rout
out (or hollow out) spaces in the surface of a generally hard work piece.
Although routers and router bits are more commonly used in woodworking
applications like cabinetry and carpentry, these cutting tools can also perform
in metals, plastics and various other materials. Essentially, though, these
cutters are used to create joinery aids (like a dovetail joint) or to embellish
work pieces with decorative or ornate effects (like formed edges, intricate
inlays or surface work). With the right router bit, users can cut, trim, and
shape work pieces with staggering versatility; these bits are available in
numerous profiles and can be custom fabricated to create virtually any profile
conceivable.
Types Of Router Bit
Of course, there are many different types of router bit and
although they all serve the same general purpose, they each do different things
and achieve different results. A good router bit, though, should be sharp,
should retain its sharp edge, and should be well balanced; this produces a bit
that will last longer and will "chatter" or vibrate less during use.
Conversely, bits of lesser quality tend to wear faster, chip easier, and
chatter more aggressively. The following, then, is a basic breakdown of how
router bits are most commonly categorized and their respective routing
applications.
Router Bit Profiles And Applications:
As aforementioned, there are numerous bit designs and,
according to that profile, each bit has a different specialization. The
following, then, briefly sums-up (in alphabetical order) the most common bit
types and the things those bits do best.
Ball End Router Bits:
As the name indicates, ball end bits have a ball or sphere
shaped formation at their bottom which routs out channels for pipes and cables.
Bull nose Router Bits:
Bull nose bits are designed to create a (convex) rounded
edge on the front edge of a work piece .
Chamfering Router Bits:
Chamfering bits produce a clean angled bevel cut. These are
commonly used in joinery for concealed joints and beveled edges in
constructions with multiple sides. Chamfer bits are also used to create a
decorative (albeit plain) angled edge.
Combination Router Bits:
Combination bits are primarily used in trimming to trim
softer materials and, particularly, veneers.
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