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System
of
Measurement
Inch
Metric
Thread
Type
Acme
BSPP
BSPT
Metric
NPT
UNC
UNF
For
Use
With
B
o
l
t
s
D
r
i
l
l
B
i
t
s
D
r
i
l
l
s
L
i
q
u
i
d
s
N
u
t
s
P
i
p
e
S
c
r
e
w
s
S
u
r
f
a
c
e
s
T
h
r
e
a
d
e
d
R
o
d
s
A
i
r
A
r
g
o
n
C
a
r
b
o
n
D
i
o
x
i
d
e
D
i
e
s
e
l
F
u
e
l
E
t
h
y
l
A
l
c
o
h
o
l
G
a
s
o
l
i
n
e
Thread
Size
M
1
.
6
M
2
M
2
×
0
.
4
m
m
M
2
×
0
.
2
5
m
m
M
2
.
2
×
0
.
4
5
m
m
M
2
.
2
×
0
.
2
5
m
m
M
2
.
5
M
2
.
5
×
0
.
4
5
m
m
M
2
.
5
×
0
.
3
5
m
m
M
3
M
3
×
0
.
5
m
m
M
3
×
0
.
3
5
m
m
M
3
.
5
M
3
.
5
×
0
.
6
m
m
M
3
.
5
×
0
.
3
5
m
m
Thread
Location
External
Internal
Material
Aluminum
Brass
Carbide
Paper
Plastic
Rubber
Ruby
Stainless
Steel
Steel
Wood
Manufacturer
Interapid
Lufkin
Milwaukee
Mitutoyo
Stanley
Starrett
Number
of
Identifiers
16
22
26
28
34
51
Length
1
6
m
m
2
5
m
m
3
0
m
m
3
5
m
m
3
8
m
m
5
1
m
m
6
1
m
m
8
1
m
m
9
8
m
m
1
0
3
m
m
0
.
1
5
m
1
5
4
m
m
1
6
c
m
1
9
1
m
m
1
9
7
m
m
Pipe
Size
1/8
1/4
3/8
1/2
3/4
1
1
1/4
1
1/2
2
Connection
Location
Bottom
Center
Back
Scale
Type
Architects'
Dual
Engineers'
Single
Display
Type
Analog
Dial
Digital
LCD
Scale
Viewfinder
Screw
Size
M
2
M
2
.
2
M
2
.
5
M
3
M
3
.
5
M
4
M
4
.
5
M
5
M
5
.
5
M
6
M
7
M
8
M
9
M
1
0
M
1
1
Width
7
.
6
m
m
9
m
m
1
4
m
m
2
0
m
m
3
1
.
8
m
m
5
5
.
9
m
m
1
/
4
"
3
/
8
"
1
5
/
3
2
"
1
/
2
"
1
9
/
3
2
"
5
/
8
"
3
/
4
"
1
3
/
1
6
"
7
/
8
"
Gender
Female
Male
Shape
90°
Elbow
Rectangle
Round
Square
Straight
Triangle
Height
5
3
m
m
1
1
/
2
"
3
3
/
1
6
"
3
9
/
1
6
"
3
1
1
/
1
6
"
3
3
/
4
"
4
1
/
4
"
4
1
3
/
1
6
"
5
3
/
8
"
6
1
/
2
"
1
8
"
t
o
3
7
1
/
2
"
2
4
1
/
4
"
t
o
3
8
3
/
1
6
"
2
7
"
t
o
4
0
"
3
9
"
4
3
"
Thickness
0
.
0
4
m
m
0
.
0
5
m
m
0
.
0
6
m
m
0
.
0
7
m
m
0
.
0
8
m
m
0
.
0
9
m
m
0
.
1
m
m
0
.
1
5
m
m
0
.
2
m
m
0
.
2
0
3
m
m
0
.
2
5
m
m
0
.
3
m
m
0
.
3
5
m
m
0
.
4
m
m
0
.
4
5
m
m
Dial
Type
Balanced
Combination
Continuous
Dry
Liquid
Filled
Dial
Diameter
2
9
/
3
2
"
1
1
5
/
3
2
"
1
1
/
2
"
1
9
/
1
6
"
1
5
/
8
"
1
1
1
/
1
6
"
1
.
7
"
2
"
2
3
/
1
6
"
2
1
/
4
"
2
9
/
3
2
"
2
3
/
8
"
2
1
/
2
"
2
1
9
/
3
2
"
4
"
Thread
Pitch
0
.
2
5
m
m
0
.
3
m
m
0
.
3
5
m
m
0
.
4
m
m
0
.
4
5
m
m
0
.
5
m
m
0
.
5
5
m
m
0
.
6
m
m
0
.
6
5
m
m
0
.
7
m
m
0
.
7
5
m
m
0
.
8
m
m
0
.
8
5
m
m
0
.
9
m
m
1
m
m
Scale
Bar
Inches
of
Mercury
Inches
of
Water
Kilopascals
Megapascals
Millibars
Newtons
Pounds
Pounds
per
Square
Inch
Forward
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1,541 Products
Measuring and Inspecting
Thread
Size
Identifiers
Confirm
your
fastener's
thread
size,
pitch,
or
threads
per
inch
16 products
Plug
Gauges
Verify
the
diameter
or
threads
of
machined
holes
in
finished
parts;
also
called
pin
gauges
41 products
Ring
Gauges
Confirm
your
workpiece's
outer
diameter
or
external
threads
are
within
tolerance
82 products
Flatness
Gauges
Determine
if
the
flatness
of
surface
plates,
lapping
plates,
and
other
surfaces
is
within
tolerance
1 product
Feeler
Gauges
Check
gaps
and
alignment
between
machine
parts
and
other
surfaces
97 products
Variance
Indicators
Identify
small
dimensional
differences
when
checking
part
quality
and
alignment
110 products
Diameter
Identifiers
Tighten
the
strap
around
rods,
drill
bits,
and
other
small
items
to
measure
outer
diameter
1 product
Radius
Gauges
Check
convex
and
concave
radii
of
tools,
patterns,
and
dies
2 products
Gear
Tooth
Gauges
Identify
your
gear's
pressure
angle,
pitch,
and
module
2 products
Gauge
Blocks
Confirm
dies,
fixtures,
and
other
workpieces
meet
precise
tolerances
and
calibrate
measuring
tools
42 products
Depth
Gauges
Reach
into
slots,
counterbores,
and
other
holes
to
measure
depth
9 products
Height
Gauges
Measure
an
object's
height
and
mark
workpieces
for
machining
16 products
Calipers
Take
inside,
outside,
and
depth
measurements
with
more
precision
than
a
ruler
140 products
Inside
Hole
Calipers
Measure
hard
-
to
-
reach
areas,
such
as
internal
grooves
and
slots
9 products
Drill
Bit
Size
Gauges
Match
your
drill
bit
to
one
of
the
holes
to
confirm
its
size
1 product
Rulers
Horizontal,
vertical,
circumference,
center
-
finding,
and
pica
rulers
265 products
Thickness
Gauges
Move
the
thumb
lever
to
quickly
check
the
thickness
of
flat
stock,
pipe,
or
tubing
13 products
Depth
Micrometers
Measure
slots,
counterbores,
and
other
holes
more
precisely
than
depth
gauges
11 products
Outside
Micrometers
Apply
even
pressure
to
objects
to
measure
thickness
more
precisely
than
thickness
gauges
87 products
Outside
Micrometer
Tips
Adapt
your
micrometer
to
measure
curved
and
irregularly
shaped
objects,
such
as
gear
teeth
and
pipe
1 product
Micrometer
Check
Gauges
Confirm
the
anvil
is
parallel
and
measure
the
amount
of
wear
on
your
micrometer
1 product
Micrometer
Heads
Mount
on
jigs,
fixtures,
and
machine
tools
to
position
equipment
and
measure
length
15 products
Variance
Indicator
Contact
Points
Attach
to
your
variance
indicator
to
make
contact
with
the
workpiece
being
measured
12 products
Tape
Measures
Standard,
long,
center
-
finding,
and
flexible
tape
measures
70 products
Laser
Measurers
Point
the
laser
to
determine
the
distance
to
objects
up
to
700
yards
away
6 products
Pipe
Size
Measuring
Kits
Connect
to
pipe
and
fittings
to
determine
their
size
without
additional
measuring
tools
2 products
Precision
Measuring
Tool
Kits
Multiple
precision
measuring
tools
in
one
convenient
case
7 products
Combination
Square
Blades
Connect
to
a
combination
square
head
to
create
a
combination
square
2 products
Squares
Check
90°
angles
during
layout
work
with
combination,
angle,
or
pipefitters'
squares
23 products
Liquid
-
Level
Tape
Measures
Lower
into
deep
containers,
such
as
tanks,
to
check
the
level
of
oil
and
other
fluids
12 products
Measuring
Wheels
Roll
along
surfaces
to
measure
distance
5 products
Staff
Gauges
Typically
mounted
to
walls
and
tanks
for
measuring
the
level
of
liquids,
such
as
water,
fuel,
and
oil
4 products
Inside
Hole
Micrometers
Find
the
inside
diameter
of
cylinders
and
rings
3 products
Diameter
Tape
Measures
Wrap
around
circular
items
to
measure
diameter
and
circumference
without
calculating
7 products
Pipe
Size
Tape
Measures
Curl
around
pipe
to
gauge
its
size,
measure
its
diameter,
or
mark
lines
3 products
Map
Distance
Measuring
Tools
Slide
across
maps
and
blueprints
to
measure
distances
1 product
Transfer
Punches
Mark
the
center
of
an
existing
hole
onto
a
separate
workpiece
40 products
Parallel
Rules
Draw
parallel
lines,
as
well
as
circles,
arcs,
and
angles
1 product
Load
Cells
Measure
forces
and
send
them
to
computers
to
monitor
and
trigger
actions
in
machinery
16 products
Position
Indicators
Track
components
on
rotating
spindles
or
lead
screws
to
help
adjust
machinery
quickly
and
precisely
16 products
Hardness
Tester
Indenters
Hard
enough
to
make
impressions
on
most
metal
to
determine
Brinell
hardness
2 products
Fluid Handling
Pressure
Gauges
Measure
pressure
in
pumps,
filters,
regulators,
and
process
lines
9 products
Pressure
and
Vacuum
Gauges
Measure
pressure
and
vacuum
in
air
and
fluid
lines,
pumps,
and
refrigeration
systems
1 product
Pressure
and
Vacuum
Transmitters
Convert
pressure
and
vacuum
measurements
into
a
signal
sent
to
remote
displays
and
controllers
12 products
Differential
Pressure
Transmitters
Relay
pressure
changes
in
heating,
cooling,
and
pumping
systems
to
controllers
and
remote
displays
3 products
Pressure
Transmitters
Send
pressure
readings
to
controllers
and
remote
displays
5 products
Sights
Observe
and
monitor
the
contents
of
pipes,
tanks,
and
other
containers
38 products
Flowmeters
Measure
the
flow
rate
of
a
liquid
or
gas
8 products
RTDs
Measure
and
transmit
liquid,
gas,
and
surface
temperature
more
precisely
than
thermocouples
5 products
Safety Equipment
Pedometers
Record
steps
and
miles
while
you
walk
and
run
1 product
Electrical
Sensor
Switches
Detect
moving
objects
from
a
distance,
triggering
a
circuit
to
open
or
close
8 products
Material Handling
Robot
Tool
Calibration
Styli
Calibrate
robot
arm
movement
for
precision
in
tasks
such
as
attaching
fasteners
1 product
The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)