Laydown Threading
Catalogue Numbering System
Laydown Threading
Boring Bar Identifi cation System
AVR203R
A VR
Shim
Requirement Tool Type
A —
Shim required
Coolant
Capability
C —
With coolant
20 3 R
Shank Head
Diameter Insert
Size Hand of
Tool
10, 12, 13, 16, 20,
25, 32, 40, 50 RH —
Thread symbol R
N —
No shim required 6.2 (Mini adjust) LH —
Thread symbol L
O —
Miniature holder 8.0 (Mini adjust)
VR — Internal round shank
d
widia.com
symbol d L1
2 6,35 11
3 9,52 16
4 12,7 22
5 15,88 27
F73
L1