A/B Series Small Hole Tooling

Available in steel and carbide shanks, the WIDIA™ line of micro boring bars is an

excellent, economical choice for a wide range of applications — from creating small

holes in small parts to precision micro boring typically found in large workpieces —

manufactured in the aerospace, heavy equipment, and automotive industries.

A/B Series

A/B Series Micro Boring Bar

Features ABD Type

  • 1,56–3,96mm diameter boring range. Replaceable boring insert with coolant slot.
  • Unique locking system enables quick, accurate insert changes.
  • Insert repeatability guaranteed within ±0,013mm.

Benefi ts

  • Quick, accurate insert setups.
  • Available in multiple styles for machining a wide range of materials.
  • Elliptical, ground insert shanks for maximum strength and rigidity.

ABD Type

Replaceable boring insert available in coated and uncoated carbide, CBN, and PCD tip. A series has a coolant slot.

BB Type

Replaceable boring insert.