Centring, Drilling and Counterboring / Countersinking - Course: Techniques for machining of material. Trainees' handbook of lessons (Institut für Berufliche Entwicklung, 22 p.)

Centring, Drilling and Counterboring / Countersinking - Course: Techniques for machining of material. Trainees' handbook of lessons (Institut für Berufliche Entwicklung, 22 p.)

		(introduction...)
		1. Purpose of centring, drilling and counterboring/countersinking
		2. Types and application of centring, drilling and counterboring/ countersinking tools
		3. Preparation of centring, drilling and counterboring/countersinking
		4. Centring with the centre square, centre bell and height gauge
		5. Centring with the centre drill
		6. Centring with the turning tool
		7. Drilling with the drill and boring with the boring tool (turning tool)
		8. Counterboring/countersinking with counterbore/countersink and turning tool