Spare Parts Overview:
This document provides a detailed list of spare parts for fine boring heads and boring bars, including both balanced and non-balanced options. It includes specifications for reducers and boring bars made from carbide and HSS materials, suitable for various boring depths and diameters.

Fine Boring Heads:
The document lists fine boring heads with adjustable counterbalance and standard versions. Key specifications include order numbers, dimensions (L, d), weight (kg), and other technical parameters.

Reducers:
Reducers are available for different diameter ranges, with specifications including order numbers, minimum and maximum diameters (Amin-Amax), and other dimensions.

Boring Bars:
Boring bars are categorized by material (carbide and HSS) and diameter range (2-20mm, 10-20mm, 20-40mm). Each category includes detailed specifications such as order numbers, length (L), and diameter (d).

Insert Holders:
Insert holders for 20-40mm boring bars are also listed, with specifications including order numbers and compatible insert types.

Key Specifications:
- Fine boring heads: Balanced and non-balanced options.
- Reducers: Various diameter ranges.
- Boring bars: Available in carbide and HSS, with different diameter and length specifications.
- Insert holders: Compatible with specific boring bar sizes.