GD&T for Fixture Designers: Applying Tolerances to Jig Components In precision manufacturing, the finished part is rarely better than the fixture that held it. Every clamp, locator, and drill bushing adds — or controls — a small amount of variation. In the end, that variation shows up in the inspection report. That is why GD&T […]

Introduction In precision machining, every micron matters. A drilled hole that drifts by even half a thousandth of an inch can put a finished part out of spec — and on a high-volume production line, that single deviation multiplies into scrap, rework, and lost time. This is why engineers rely on jig bushing tolerance charts […]

How to Select the Right Drill Bushing |Engineering Guide: Slip-Fit, Press-Fit, or Renewable? A practical decision framework for tooling engineers, fixture designers, and machinists working with jig-plate drilling operations. CROSS-SECTION VIEW What Is a Drill Bushing? Three Main Types Selection Criteria Comparison Table Standards & Tolerances Common Mistakes  

How to Design a Production Drill Jig: Bushing Selection, Location, and Clamping System Introduction — Why Drill Jig Design Matters In production machining, accuracy is not a goal — it is a requirement. When hundreds or thousands of identical parts must be drilled to the same specification, the drill jig is what makes that possible. […]

Drill Bushing Types Guide: ANSI P, H, SF, PM & More Choosing the wrong drill bushing can ruin a part, slow down production, and cost your shop real money. Whether you’re building a new drill jig or upgrading an existing fixture, understanding drill bushing types is one of the most important decisions you’ll make. The […]