HSS Center Drill
A centre drill is a tool used in lathes and milling machines that makes a precise, conical hole to hold an item between centers. In order to ensure that larger drills begin straight and avoid wandering, it also acts as a guide.
Here's a more detailed explanation:
- Purpose:
Centre drills are primarily used in machining to create a starting point for a twist drill or to hold a workpiece between centers.
- Function:
They create a conical recess on the end of a workpiece, providing a precise location for the lathe's center to grip.
- Types:
Centre drills come in various forms, including "Type A" (without protecting chamfers) and "Type B" (with chamfers).
- Applications:
They are commonly used in woodworking and metalworking to create holes for screws, dowels, bolts, and other fasteners.
- Alternatives:
Spot drills, which have a simpler geometry, are often preferred for creating center holes in machining centers.