Modern robot arms are capable of doing complex tasks autonomously with high precision. The availability of advanced features in a robot is suitable but that also increases the overall cost, which is a major driving factor in some applications. Fruit harvesting is one such application, where the cost is one of the major barriers to the ongoing development of robotic arms in agriculture. This paper shows a cost-effective robot arm that has been designed by selectively keeping only the required features and omitting the unwanted ones, along with some other changes. The developed robot arm is cost effective than the similar arms in the market and suitable for fruit harvesting and other such agricultural applications.