Page 193 - TesaKatalogen

S trai g h tness , A n g le an d I nclination M easurement Hardened steel.
Measuring faces
Brown & Sharpe Angle Protractor - Multiple Combinations specially treated
against scratches
This angle protractor combination set can be used as a scale, depth gauge, try
square, centering tool, marker or even as a spirit level.

With centering square

With spirit level With angle protractor 2x 90° graduations

06719000 B&S angle protractor set Consisting of:
with multiple combina- ––1 Ruler graduated in millimetres, length 300 mm
tions ––1 Angle protractor with 2 x 90° graduations
––1 Centering square
––1 Square head with scriber

Brown & Sharpe Sine Bar 5 μm
Hardened alloy steel
Suited for setting ranges from 0 to 60° Removable front
stop
Sine function for establishing the angle that needs to be set on the basis of the
length dimensions obtained from parallel gauge blocks.

L = 127 mm

H

α

06769005

Example for the calculation of an angle
Given: H = height of combination gauge blocks in mm
L = length of B&S sine bar in mm

F ormula: H = L * sin(α)
sin(α) = H/L
angle = arcsin (H/L)

Calculation for determining angle knowing H et L values:
angle = arcsin ( 89,803 / 127) = arcsin (0,70711) = 45°

06769005 B&S Sine bar L (centre mm
distance),
mm
127 ± 0,004 123 x 25

J-16