PAINT BORER 518 USB
16
BAE 518 USB
3.4 Slider mechanism
The slider is a key functional element of the
PAINT BORER
. It holds the drill apparatus
and the measuring microscope. The slider can be moved along a lengthwise guide so
that either the drill or the microscope is in the end position above the test point.
The slider is in the
drill position
when it is slid all the way to the left (left end stop).
By pressing down gently from above on the spring-loaded drill unit, it will lower and
simultaneously switch on the motor.
The right end stop position of the slider is the
measurement position of the digital
microscope.
3.5 Wedge cut drill
(Refer to the table in section 2.3.2.)
The basic configuration of the
PAINT BORER
518 USB
includes a boring tool for the
measurement range of 300 microns (the No.5 drill). Additional drills are available as
accessories: for up to 200 microns (drill number 2), 500 microns (drill number 4), 1000
microns (drill number 1) and 2000 microns (drill number 3).
Drill number 1 has a single-edge cutting profile. Drills numbered 2, 3, 4 and 5 have a two-
edge cutting profile so that they can make proper conical bores at very shallow incidence
angles (5.7°, 8.5°, 14° or 26.7°).
All drills are made of solid hard metal (carbide) which is extremely wear-resistant but also
extremely brittle. Therefore, the drills should not be exposed to excessive shock
(especially when working on hard substrates).
In order to change the drill bit, loosen the clamping screw in the drill chuck (using the
screwdriver included with the delivery) and pull out the drill bit. Insert the new drill bit so
that it snaps into the coupling. Then tighten the clamping screw.
