Product Overview: The document describes a short solid carbide 90° step drill designed for creating core holes and countersinks for machine tapping. It is suitable for various materials including light alloys, reinforced plastics, steels, cast irons, and graphite.

Specifications: The drill is available in different sizes, each specified by parameters such as diameter (Dc), countersink diameter (D2), and lengths (L1, L2, L3). The sizes range from M3 to M16, with corresponding product codes for each size.

Range of Application: The drill is applicable to:

• Light Alloys: Categories A1.1-1.7, A2.1-2.7, A3.1-3.2, A4.1-4.2
• Reinforced Plastics: Categories B1.1-1.5, B2.1-2.4
• Steels: Categories C1.1-1.8, C2.1-2.3, C3.1-3.2, C4.1-4.2
• Cast Irons: Categories F1.1-1.2, F1.4-1.5, F2.1-2.2
• Graphite: Category G2.1

Coating and Tolerances: The drills are coated and have specific tolerances (m7, h6) for precision work.

Additional Information: For detailed working parameters, refer to page 230 of the document.