Special Drills Overview
This document provides detailed specifications and applications for various types of special drills, including spot weld millers and milling drills. It includes information on materials, dimensions, and packaging.

Spot Weld Miller HSS
Designed for removing spot welds from sheet metal, these drills feature exchangeable and double-headed milling crowns with adjustable milling depth. They ensure no tearing or deformation of the sheet metal, allowing for efficient and rapid work. Packaging is provided in plastic.

Spot Weld Drill HSSE-Co 5 and Carbide
These drills are suitable for hard materials and are used in hand drills to achieve clean and burr-free milling of spot welds and thin-walled workpieces. They are highly precise and applicable to various materials such as sheet steel, brass, aluminum, zinc, copper, and plastic.

Milling Drill HSS
These drills are used for drilling and milling contours in wood, sheet metal, plastics, and other thin-walled materials. They feature a twist drill at the tip with a milling cutter and chip breakers.

Cutting Speeds and Coolants
The document includes a comprehensive table of cutting speeds for different materials and drill sizes, along with recommended coolants. For example, high carbon structural steel requires cutting spray, while thermoplastics use water.

Key Data from Tables
- Cutting speeds vary based on material type and drill diameter.
- Coolants recommended include cutting spray, compressed air, and water.
- Drill diameters range from 1.0 mm to 50.0 mm, with corresponding RPM values provided for each size.