Small Hole Boring
Catalogue Numbering System
A/B Series Boring Bar Identifi cation System
Each character in our catalogue number signifi es a specifi c trait of that
product. Use the following key columns and corresponding images
to easily identify which attributes apply.
ATBM838
AT B M 8 38
Series Style and Bar Type
Construction Features
of the Boring Bar Boring
Bar Type Shank Diameter
shown as “D” Length
shown as “L”
AT = Through Coolant
BS = No Coolant
M = Metric
Metric
8 =
8,00mm
Metric
38
= 38,0mm
10 = 10,00mm 100 = 100,0mm
12 = 12,00mm 102 = 102,0mm
16 = 16,00mm 152 = 152,0mm
20 = 20,00mm
widia.com
D61
L