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close this bookDriling, Countersinking and Counterboring - Course: Technique for manual working of materials. Trainees' handbook of lessons (Institut für Berufliche Entwicklung, 18 p.)
View the document(introduction...)
View the document1. Purpose of drilling
View the document2. Machines for drilling
View the document3. Tools for metal drilling
View the document4. The operation of drilling
View the document5. Setting of the tools
View the document6. Clamping of the tools
View the document7. Clamping of the workpieces
View the document8. Technological process of drilling
View the document9. Purpose and application of counterboring/countersinking
View the document10. Labour safety recommendations

6. Clamping of the tools

According to the size of the drills (type of the shank), the drills are clamped in a three-jaw chuck or in taper sleeve collets. In mass production, quick-change chucks are often used for the drilling machines, which enables the drill to be changed with the machine running.


Figure 12 - Tool holding fixtures

1 - taper sleeve
2 - Three-jaw drill chuck

What clamping possibilities are there for:

1. Tools with cylindrical shank
2. Tools with taper shank?
1. _______________________________
2. _______________________________