Introduction

What is a cutting tool? Examples, classification, designation and materials

Cutting tool it is a sharp edged wedge shaped device used to remove excess material from workpiece during machining. Examples of cutting tool include turning tool, drill, milling cutter, reamer, broach, etc. Its geometrical features, classification and materials are also discussed here. Read details…


Concepts of single point, double point and multi-point cutting tool

Single point, double point and multi-point cutting tool, their examples, advantages and disadvantages are discussed here. When cutter has only one main cutting edge, it is called single point cutter; when it has two then it is called double point cutter; and when it have more than two it is called multi-point cutter. Read details…


Single point cutting tool – Examples, advantages and disadvantages

What is single point cutting tool? It is a cutting tool having only one main cutting edge that remains engage with workpiece during machining in a single pass. Turning, shaping, boring, planing, slotting, etc. are examples of single point cutter. Advantages and disadvantages of such cutter are also discussed here. Read details…


Double point cutting tool – Examples, advantages and disadvantages

What is double point cutting tool? It is a cutting tool having two main cutting edges that simultaneously engage in machining in a single pass. Examples double point cutting tool, advantages and disadvantages of double point cutting tool are also discussed here. Read details…


Multi-point cutting tool – Examples, advantages and disadvantages

What is multi-point cutting tool? It is a cutting tool having more than two main cutting edges that remain engaged with workpiece during machining in a single pass. Milling cutter, reamer, broach, hob, grinding wheel, etc. are examples of multi point cutter. Advantages and disadvantages are also discussed here. Read details…


What is SPTT?

Full form of SPTT is Single Point Turning Tool. It is the cutting tool used in lathe operations (turning, facing, threading, grooving, etc.) in machining. Significance of Single Point is also discussed here. An SPTT consists of three main surfaces namely rake surface, principal flank surface and auxiliary flank surface. Read details…


Boring tool is single point or multi point – Explain?

Boring tool is a single point cutting tool as it consists of only one main cutting edge, similar to single point turning tool (SPTT). However, large diameter rough boring tools with multiple cutting edges are now-a-days available in the market. Read details…


Why drill is a multi-point cutting tool?

Drill is a multi-point cutting tool as it contains more than one cutting edge and all cutting edges simultaneously take part in cutting action during machining. Sometime drill is classified as double-point cutting tool because common metal cutting drills contain only two cutting edges. Read details…


Left hand cutting tool and right hand cutting tool

Concepts of left hand cutting tool and right hand cutting tool are discussed here with diagram. Right handed turning tool and left handed turning tool determine position of main cutting edge in cutting tool and corresponding feed or rotation direction. Read details…