Iso 20457 Tg5 Verified
Within the ISO 20457 framework, , suitable for a wide variety of plastic parts. It is often used as the default standard when no specific tolerance is called out on a technical drawing. According to industry sources, TG5 is a "medium" tolerance grade, striking a balance between dimensional accuracy and manufacturing cost. In practical terms, for mid-sized parts (100–300 mm), the typical tolerance range associated with TG5 is around ±0.10 mm to ±0.25 mm . Another source indicates that for automotive interior trim or electronic enclosures (which often use TG5), the achievable range is ±0.10mm to ±0.25mm for medium-sized parts. It's considered the standard benchmark for industrial parts, while tighter grades like TG4 represent the extreme limit of tool-room capability.
: Medium / Commercial tolerances (the industry standard for consumer electronics, automotive trim, packaging, and household appliances). Iso 20457 Tg5