A Simple Training Program for Operating a Tool and Cutter Grinder

The main purpose of a tool and cutter grinder is to sharpen tool bits and milling cutters as well as various cutting tools. This versatile machinery can perform various grinding operations on complex shapes, cylindrical objects and normal surfaces. These days, the CNC or Computer Numerical Control type of machines has become more popular since most grinding operations have complex procedures.


The manual type of the tool and cutter grinder necessitates high levels as far as skill sets and experience go. The person operating the grinder should have an understanding of the connection between the cut metal and the wheel of the grinder. Tool geometry knowledge is also critical. Since there is a huge array of machine cutters both in type and shape, the person using it needs to have a good amount of flexibility as well. There are specific dedicated features, which facilitate grinding on cylindrical surfaces or at complicated angles. The grinder comprises a vise, which swivels across three planes and a table, which moves both laterally and longitudinally. Even the head is able to swivel and can be easily adjusted horizontally. It is the flexibility within the head of the tool and cutter grinder that makes unusual cutting angles possible.

The CNC Variety

These days, the average tool and cutter grinder is of the CNC type. These CNC tool and cutter grinder versions have 4, 5 or sometimes even 6 axes, which result in drills, endmills etc. These types of grinders are very prevalent across the metal cutting niche. Such tool and cutter grinder versions can be easily adapted to precision cutting machine parts. If the tool and cutter grinder is used for such purposes, then it is known as CNC tool and cutter grinder. These kinds of grinders are largely used for production of parts within the medical, aerospace, automotive as well as other industry verticals. If the material is of exotic variety or extremely hard, these tool and cutter grinder machines can easily grind them. The modern grinding machines are also equipped with multiple axes, which make it possible to facilitate complicated cutting geometrics and angles.

Radius Grinder

The radius grinder, also called radius tool and cutter grinder is used to grind some of the most complex tool shapes. This is actually the predecessor to the modern CNC type tool and cutter grinder. Just like CNC grinders, the radius tool and cutter grinder may also be used for grinding spherical surfaces. The radius tool and cutter grinder comprises three parts namely the holding fixture, work table and grinder head. The head is equipped with three degrees of movement—tilt, vertical movement as well as workpiece movement. These parameters are preset and then left in their fixed values through the entire operation. The work table is essentially an X-axis type of table with T-slots and it is mounted over radial fixtures. Putting the X-axis above the table helps in accurate as well as complex radius grinds. Holding fixtures comprise anything that can be mounted over the table but typically entail a chuck or collet fixture with individual Y movement.