520 / 1562
2/274
2
Cutting Tools
path speed
Conversion
inches to metric
Speed RPM
Cutting speed
Gradient
D = workpiece diameter
(mm)
D
2
= edge diameter
(mm)
(nominal diameter)
n = speed
(min
-1
)
P = pitch
(mm)
P
h
= gradient
(mm)
V
f
= path speed
(m/min)
TPI = Turn per inch
Vc = cutting speed
(m/min)
λ
= tilt angle
(°)
Tilt angle
n =
Vc • 1000
(min
-1
)
π • D
Vc =
π • D • n
(m/min)
1000
V
f
=
n • P
h
(m/min)
1000
P
h
= P • number of turns
(min)
TPI =
25,4
P
λ
= arctan
P
h
(°)
D
2
• π
Radial feed
Along the edge
Reciprocal feed
Order No.
Type
Description
Catalogue page
2969 0115 – 2969 00005
SER/SEL
Clamp holder
2/276
2969 0206 – 2969 0324
TN 16 ER/EL
60° metric, solid profile
2/277
2969 0500 – 2969 0530
TN 16 ER
55° WW, solid profile
2/278
Order No.
Type
Description
Catalogue page
2969 0700 – 2969 0830
SIR/SIL
Boring bar
2/279
2969 0900 – 2969 0939
TN 11–16 NR/L 60° metric, solid profile
2/280
2969 2000 – 2969 2027
TN 11–16 NR/L 55° WW, solid profile
2/281
60° ISO metric
solid profile for inner and outer processing
55° Whitworth
solid profile for inner and outer processing
With solid profile turning plates the inner and outer diameters turn together,
so that all parts are concentric. Burr-free profiles are achieved, exactly to standard,
in one operation.
Number of cuts (passes) and delivery methods
Gradient mm
0.50 0.75 1.00 1.25 1.50
1.75
2.00
2.50
3.00
Threads/Inch
48
32
24
20
16
14
12
10
8
Number/passes
4–6 4–7 4–8
5–9 6–10 7–12 7–12 8–14 9–16
Name and formulas
External threading toolholders
Internal threading bars
Threading - technical information
Threading – overview
520