Blog Category:CNC Machining

An O-ring groove may look like a simple circular recess, yet its dimensions determine whether a seal compresses correctly, stays in position, and survives pressure, temperature changes, assembly, and repeated motion. A groove that is too shallow can over-compress the elastomer, while one that is too deep may not create enough contact pressure. Width, corner […]

An open slot is a common feature in CNC-machined brackets, plates, housings, clamps, and structural parts. Although it looks like a simple channel, its width, depth, end condition, tool access, and nearby wall thickness can strongly affect machining accuracy and cost. Open slots may provide adjustment, guidance, clearance, side access, or controlled flexibility. This guide […]

A dovetail slot is a trapezoid-shaped internal groove used when a part needs a sliding, locking, or alignment feature that resists pull-out better than a straight slot. In CNC machining, this feature is often small in appearance but important in function because its angled sidewalls control how another component slides, locates, clamps, or holds position. […]

A keyway is a narrow machined recess that helps connect a rotating shaft with a hub, gear, pulley, coupling, or similar component. Although the geometry appears simple, its width, depth, alignment, corner condition, and fit directly influence torque transfer, assembly, backlash, and service life. A keyway may be produced on the outside of a shaft […]

An idler gear part looks simple from the outside, but it often controls the reliability of a whole gear train. It sits between a driving gear and a driven gear, helping transfer rotation, change output direction, or maintain shaft spacing when two main gears cannot mesh directly. For replacement projects, small machines, automation equipment, motors, […]

Introduction: Swiss lathe manufacturing is often chosen when a part is too small, too slender, or too detailed for efficient conventional turning. In CNC machining projects, buyers usually care about accuracy, burr control, repeatability, cycle time, material choice, and whether the process is worth the setup cost. This guide explains Swiss turning as a practical […]

Hole diameter looks like a simple dimension on a drawing, but in CNC machining it can decide whether a shaft slides, a pin locates, a screw clears, a seal works, or an assembly fails. Many design problems start when a drawing asks for a tight diameter without explaining the function, or when a shop treats […]

Through holes are one of the most common and practical features in CNC machined parts. A through hole passes completely through the material, creating an open path from one side of a part to the other. This simple definition often hides important design decisions: clearance, position tolerance, edge distance, burr control, surface finish, thread engagement, […]

Threaded holes are small machining features with a major effect on assembly quality. They allow screws, bolts, studs, and adjustment hardware to fasten directly into a CNC machined part without using a separate nut. The feature is common in housings, brackets, plates, flanges, covers, manifolds, fixtures, and precision mechanical assemblies. However, a threaded hole is […]

Tapped holes are small features, but they often decide whether a machined part can be assembled, serviced, sealed, adjusted, or mounted correctly. A housing may look perfect from the outside, yet a wrong thread depth, unclear callout, oversize pilot hole, or broken tap can make the part unusable. For buyers and designers ordering custom CNC […]

Reamed holes are one of the most important precision hole features in CNC machining because they turn an ordinary pre-drilled hole into a more controlled functional feature. Designers usually specify reamed holes when a pin, dowel, shaft, bushing, or locating element must fit smoothly and repeatably without excessive clearance. In manufacturing discussions, many questions around […]

Precision holes are one of the most important CNC machining features because they control how a machined part fits, moves, seals, or assembles. On a drawing, a precision hole may look like a simple circular opening, but in production it usually has a strict functional purpose. It may locate a dowel pin, guide a shaft, […]

Drilled holes are among the most common features in CNC machined parts, but they are not always as simple as they look on a drawing. A round opening may decide whether a screw fits, a dowel aligns, a fluid passage works, or an assembly can be installed without rework. This guide explains drilled holes as […]

Deep holes are not simply holes that look long on a drawing. In CNC machining, a deep hole is usually understood by its depth-to-diameter ratio, because a narrow hole becomes difficult much faster than a large hole of the same depth. This feature appears in shafts, manifolds, housings, molds, hydraulic parts, cooling components, alignment parts, […]

Countersunk holes are small CNC machining features with a large effect on assembly quality. They allow flat-head fasteners to sit flush with, or slightly below, a machined surface. This helps covers, brackets, panels, housings, fixtures, and precision plates remain smooth, compact, and safe to handle. Although the feature can look like a simple bevel, it […]

Counterbored holes are common in CNC machined parts because many assemblies need fastener heads to sit in a controlled recess instead of standing above the surface. They appear in housings, brackets, fixture plates, covers, frames, and precision mechanical parts where clearance, appearance, clamp consistency, or head protection matters. Although the feature looks simple, real problems […]

Structural parts are the foundation of many mechanical products because they support loads, hold assemblies together, protect key components, and keep the final product stable during use. In custom manufacturing, these parts often need accurate dimensions, reliable strength, and design flexibility that standard components cannot provide. CNC machining is commonly used for structural parts because […]