Various Types of Drilling Machines and Its Uses

Basic Operation. Drilling is an operation through which circular holes are produced by means of drill.

PURPOSE AND USE OF DRILLING MACHINE

Drilling machine is used for following operations:

(a) Drilling

(b) Reaming

(c) Boring

(d) Counter Boring

(e) Counter Sunking

(f) Spot Facing

(g) Tapping

TYPES OF DRILLING MACHINES

(a) Portable Drilling Machine. It is a very small, compact unit carrying a small electric motor. It is commonly used for drilling holes in those components which cannot be transported.

Portable Drilling Machine

(b) Upright Drilling Machine . It is also known as standard, vertical or pillar drilling machine. It is used for heavy work and has rapid reversing mechanism for withdrawal of drills. These machines are manufactured in various sizes having drilling capacities up to 75 mm diameter.

Upright Drilling Machine
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