|Centring, Drilling Counterboring and Countersinking, Reaming and Tapping on the Drilling Machines - Course: Techniques for Machining of Material. Trainees' Handbook of Lessons|
The following main tools are applied: centre punch, centre drill, twist drill, counterbores and countersinks (spiral-flute counterbore, 60° and 90° included angle countersinks, piloted counterbore), reamer, tap.
The basic construction of the tools to be used differs only in the shape and number of tool cutting edges. The tools to be used can have a parallel shank or a taper shank. The basic construction of the tools can be seen in Figures 7 - 13.
Which tools can be used for reaming a bore, taking the
technological sequence of operations into