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The router kit consists of a tool that is
used to ‘rout’ out a hollow area in a material such as wood. The kits
usually offer both plunge as well as Fixed Base Router facilities, with
a D-handle router option. The router is used for cutting rabbets,
mortises, dadoes, tongues, and grooves. This tool can be used to mold
edges or even radius the edge of a wooden piece. A D-handle router,
used normally in pattern and staircase making, can help in chamfering
wood, giving it a beveled edge. The aesthetic applications of routers
include rendering furniture with a three-dimensional look and creating
decorative inlays. Fixed base routers are sometimes used to trim
laminate flush. A palm router can be used for trimming deck planks,
forming window cutouts, and dovetailing. While these tools are used by
skilled workers, such as carpenters, masons, plumbers, and other
building contactors, they are user-friendly and simple to use even for
the hobbyists.
Features and working of a router kit
The kit forms an amalgamation of the
different types of routers. In a plunge based router, the motor is
turned on first and then the cutting bit is brought into contact with
the work surface, while in the fixed base router, the cut depth is
predetermined prior to the routing. A D-handle router has a cylindrical
body, housing the motor, which tapers towards the collet, which is the
hexagonal holder holding the bit in a firm grip. This collet can be
opened with a wrench to remove or replace bits, which are supported on
a circular base plate.
The tool uses approximately a 5.7 to 12 amp
motor that generates an output speed of around 8000 to 35,000
revolutions per minute (rpm). Most of the tools have a variable speed
feature that enables the user to change the speed depending on the
specific application. A soft-start facility prevents the torque from
rising rapidly during startup, which could cause the tool to jerk and
thus mar the surface being worked upon. The constant response circuitry
keeps the speed of the tool constant, even under high intensity tasks
and avoids overload. A quick clamp feature enables the motor to be
shifted from one base to another easily. A motor latch enables quick
release of the motor. Accuracy is further enhanced through a one-piece
armature shaft and a long bit shank capacity.
An efficient bit depth adjustment feature
enables the bit depth to be adjusted both at the micro and macro Level.
Depending on the application, a variety of bits can be used. Broadly,
these bits are grouped into two categories; high-speed bits and carbide
tipped bits. Within these two categories, there are three types; edge
bits, non-edge bits, and non-kickback bits. Edge bits, having a wheel
bearing structure forming a Fence against the work surface, are used
for edge molding. Non-edge bits have a stand-alone fence linked to
either the router or the work piece. Anti-kickback bits have a padding
under the edge to prevent deep entry into the work piece and thus avoid
kickbacks. Bit shank diameters vary between half inch, 12 mm, 10 mm,
3/8 inch, 8 mm, quarter inch, and 6 mm.
What to look for in a router kit
A precision centering device is useful to
enhance accuracy by holding the bit rigidly along the cutting line,
especially in cases of jigs, dovetails, and templates. Generally, palm
grip routers as well as some of the other routers have a soft grip,
with an ergonomic design to increase the comfort level of the user.
Sometimes, palm grip routers have finger supports to ensure better
stability and handling. A macro height lever enables coarse
adjustments. Most of the moving parts of the tool have ball bearings to
prevent wear and tear due to friction. An auto spindle lock coupled
with overhead collet access enables the user to change bits without
dislocating the motor. A side-handle grip can convert a fixed base
router into a D-handle router.
Fixed base routers have a sturdy aluminum
body to combine durability with lighter weight. As with any cutting
tool, there is bound to be a certain amount of dust generated. Most
tools have an integrated dust collection feature which keeps the
environment clean for the user and also prevents the internal parts of
the tool from getting clogged due to entry of dust.
Some reputed
manufacturers of Router kits include Bosch, Dewalt, Dremel, Makita,
Milwaukee, and Porter-Cable.
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