Tilley

Stainless steel earns its name from a chromium oxide film that shields the iron underneath. Yet machined stainless parts can still rust, and the culprit is usually the machining process itself. Stainless steel passivation removes that contamination and restores the protective layer, making it one of the most valuable low-cost

Anodizing aluminum parts is the most common way to protect and decorate CNC machined aluminum. The process grows a controlled oxide layer on the metal surface, adding corrosion resistance, hardness, and color while contributing almost no weight. Because aluminum already carries a thin natural oxide film, anodizing simply thickens that

CNC gear machining turns blank discs into the teeth that drive conveyors, actuators, pumps, and robots. Unlike molded gears, machined gears handle real torque, tight backlash, and one-off sizes without any tooling investment. This guide covers the gear types a CNC shop can make, the processes behind the teeth, and

Press fit tolerance is the difference between a bearing that stays seated for years and one that spins loose in a month. Too little interference and the joint loosens under load. Add too much, and the housing cracks or the assembly press bottoms out. This guide explains interference, clearance, and

CNC undercuts are the features that quietly double a part’s price. An undercut is any surface a standard tool cannot reach from a straight direction. Internal grooves, snap-fit lips, and recessed threads are typical examples. Because end mills cut only where they can physically travel, these features force special tools,