Sewing machine is one of the necessary tools for making trousers. There are many types of it. Different sewing machines are suitable for different sewing tasks and materials. Here are several sewing machines suitable for making trousers and their characteristics:

1. Single Needle Sewing Machine
Unlike the Double Needle Flat Sewing Machine, the Single Needle Flat Sewing Machine is one of the most basic sewing machines. Its main function is a single thread sewing operation, which is used to sew ordinary knitted materials, denim, striped fabrics, etc. To make the trousers, use a single-needle sewing machine to sew the inseam of the trouser panels and the creases on the outer legs. Single-needle sewing machines are cheap and easy to operate, but not very fast and suitable for beginners.
2. Bone machine
A bone thread machine is a very fast sewing machine that is suitable for all types of trouser making. The bone thread machine can sew inner and outer fabrics at the same time without damaging the fabric color and edges. It can also sew any style of seam for a better fit.
3. Flat needle sewing machine
Flat needle sewing machines are also known as overlock machines, which are mainly used for "overlock" when sewing trousers, so that the trouser pieces will not crack or pill. Flat needle sewing machines are capable of sewing all kinds of fabrics, especially heavy fabrics, and can also process the edges of trouser legs to make them flatter.
4. Lifting se