Overview: The document outlines the technical specifications for push-in drill bushes adhering to DIN 173, part 1, Form L standards. These components are crucial in manufacturing for guiding and supporting drill bits.

Material and Construction: The drill bushes are constructed from special steel, hardened to a hardness of 780 ±40 HV 10, and are precision-ground. Each bushing is marked with the hole dimension and tolerance on the collar's upper surface for easy identification.

Specifications: Various models of drill bushes are detailed, with diameters (D1) ranging from 4.1 mm to 10.5 mm in 0.1 mm increments. For diameters exceeding 15 mm, increments increase to 0.5 mm. Lengths (L1) are categorized into short, medium, and long, with specific dimensions provided for each category.

Key Parameters: The document provides detailed measurements for each model, including D2, L1, D3, D4, D6, L2, L6, L7, M, T1, T2, R1, R2, E1, and E2. These parameters are essential for ensuring the drill bushes' compatibility and performance in specific applications.

Applications: Drill bushes are vital in precision drilling operations, offering stability and accuracy. They are suitable for various industrial applications where precise hole dimensions are necessary.