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Micro
Drills for PCB
Tungsten
carbide micro
drill is used to
obtain through-holes
in the printed
circuit board (PCB).
Although more
brittle than
conventional high
speed steel (HSS)
drills, tungsten
carbide bits
designed
specifically for PCB
drilling will
yield far superior
hole wall quality.
The downside is
that, with smaller
diameters, the carbide
drills are
easier to break and
must be handled
carefully.
Always wear safety
glasses when you are
drilling with carbide
PCB drill bits.
If available, always
use a vacuum cleaner
to remove debris and
collect airborne
dust during the
drilling operation.
The dust generated
during PCB drilling
can pose a very
serious health
hazard and should
not be inhaled or
ingested under any
circumstances.
For furhter information about tungsten carbide products, please visit www.tungsten-carbide.com.cn. If there is
something you need,
please do not
hesitate to e-mail
us by sales@chinatungsten.com
>>>Here
below are the
specifications of cemented
carbide buttons.
|
Series |
Type |
Drill
point type |
Helix
angle |
Point
angle |
Applications |
|
H |
PH |
Undercut
type |
30° |
130°~165° |
Glass-epoxy
circuit
boards,
multilayered
circuit
boards,
through-hole
circuit
boards etc. |
|
RH |
common
type |
30° |
130° |
Glass-epoxy
circuit
boards,
through-hole
circuit
boards etc. |
|
U |
PU |
Undercut
type |
25° |
130° |
Glass-epoxy
circuit
boards,
multilayered
circuit
boards for
high-speed
use. |
|
M |
RM |
Common
type |
37° |
130° |
Paper-epoxy
circuit
boards,
paper-phenol
circuit
boards,
flexible
circuit
boards. |
|
D |
RD |
Common
type |
35° |
140°~150° |
Glass-epoxy
circuit
boards,
both-sided
circuit
boards,
through-hole
circuit
boards. |
|
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| China
Tungsten
Online
Overall
of pure,
cemented
carbide
& heavy
alloy
tungsten,
molybdenum,
rare earth
silicon &
PM |
| China
Tungsten
Industry
Association
(CTIA)(CH)
News
& prices
of tungsten
powder,
cemented
carbide
& alloy
worldwide |
| China
Tungsten
Industry
Association
(CTIA)(EN)
News
& prices
of tungsten
powder,
cemented
carbide
& alloy
worldwide |
| China
Darts
Tungsten
heavy alloy
dart
billets,
barrels,
flights,
shafts,
tips,
dartboard,
box, case
& all
about darts'
accessories |
| Molybdenum Molybdenum
ore, oxide,
trioxide,
sodium,
metals,
disc, plate,
sheets, rod,
bar,
support,
boats, wires
&
support |
| Tungsten
Heavy Alloy
(WHA) Bucking
Bar
Full
range of
Tungsten
heavy alloy
bucking bars
for aircraft
riveting
tools |
| Tungsten
Wire
Pure
tungsten
bars &
rods 4
redrawing,
straight
&
stranded
,learned
& black
lighting
wire, heater
&
supports |
| Pure
Tungsten
Pure or
K-doped,
Th-doped 4
redrawing,
melting
steel
(carbonized)
alloy,
electrodes,
contacts for
welding |
| Tungsten
Heavy Alloy
(WHA )Paper
Weights
Our newest
invention
for tungsten
heavy alloys
as paper
weights art |
| Tungsten
Powder
Pure
tungsten (W)
powder,
carbide or
carbonized
powder &
ready to
press
/sintered
mixed
WC powder |
| Tungsten
Heater
All
types
stranded
pure or
K-doped
wires &
heaters for
lighting,
lamp, &
metallsing
(metallizing)
coating |
| Chinatungsten's
Workshop(Putian)
Cemented
carbides
& heavy
alloy
processing
workshop of
Chinatungsten
online |
| Tungsten
Heavy Alloy
Bars, rods,
cubes, bobs,
balls,
pellets,
bricks,
plates,
billets,
barrels for
counter
weights,
anti-radioactive/radiation
protection
instruments,
shielding,
resource
holder,
anti-tank
,darts sets,
golf clubs,
aircraft
parts,
yachts
balances,
fishing
sinkers, oil
well logging
... |
| More
links>>> |
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