Broaching is a metalworking process that involves removing material from a workpiece using a specialized cutting tool called a broach. The broach consists of a series of teeth that progressively increase in size, allowing it to remove material in a single pass. Broaching is often used to create precise internal features such as keyways or splines in metal parts. It requires specialized equipment and skilled operators to ensure accurate, efficient production.

CNC Milling refers to a computer-controlled machining process that utilizes rotary cutters to remove material from a workpiece. This skill involves programming and operating CNC milling machines to create precise parts and components from various materials, including metal, plastic, and wood. Knowledge of CNC Milling is used to produce intricate designs and maintain tight tolerances in manufacturing, enabling efficient production and high-quality outcomes in various industries.

Chamfer is a skill used in various industries such as architecture, carpentry, metalworking, and engineering. It involves cutting or grinding down the edges of a material to create a bevel, usually at a 45-degree angle. This technique is used to strengthen the material, prevent it from chipping, and create a more polished look. Chamfering is often used in woodworking to create a smooth edge or to create a stronger joint between two pieces of wood.

Horizontal milling is a specialized type of milling that involves milling in a horizontal orientation, with the spindle mounted horizontally. This technique is used primarily for milling large and complex parts, and requires specialized equipment and skill. Horizontal milling can produce a wide range of parts with high precision and accuracy, but requires a skilled operator to ensure proper setup, tool selection, and operation.

Speeds and feeds refer to the parameters used to determine the optimal cutting parameters for machining operations such as milling, drilling, and turning. This requires a specialized skill as it involves an understanding of various factors such as the material being machined, the cutting tool's geometry, and the machine's capabilities. Effective use of speeds and feeds can result in improved efficiency, reduced wear and tear on equipment, and better quality parts.