26th November 2019

technologystudent
12

What is Centre drilling on a lathe and why is it used?

The tailstock of a lathe can be used for drilling, with the aid of a drill chuck attachment. The drill chuck has a morse taper shaft which can be push into the shaft of the tailstock, locking it in position. The usual starting point for drilling with a centre lathe is to use a countersink bit.

In this regard, what is a Centre drill for?

Centre drills are usually double sided drills with a 60' stepped point, held in a drill chuck or collet chuck in a lathe. The purpose of the centre drill is to create an accurate centre hole in the face of a job so as a live centre can be inserted to support the weight and load of the job, whilst turning it.

What is the angle of a center drill?

Specification:
This listing is for a set of 5 HSS Center Drills.
It includes 1 each of sizes #1, #2, #3, #4 and #5.
Each drill has a double end and is ground with a standard 60 degree included angle.

What is a spot drill used for?

Machinists are familiar with spot drills–they're stub length and have little or no flutes. These little drills are designed to be extremely rigid so that they can precisely spot a hole for a twist drill.
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