✓ Precision-Engineered: Constructed from precision CNC-machined 6061-T6 aluminum alloy with ±0.1mm tolerance, adhering to ANSI Go & No-Go Class 2B standards delivers precise thread verification. Ideal for workshops, garages, and professional hardware tasks
✓ Complete Metric & Imperial Sizes: 36 thread sizes—18 Metric (M3 × 0.5 to M16 × 2.0) and 18 Standard (#6-32 Coarse to 5/8-18 Fine), includes 28 drill sizes covering 14 Metric (M3 to M9.5) and 14 Imperial (7/64" to 13/32"), plus four standard drill point angles: 55°(BSPT)/60°(NPT)/90°(sheet metal)/118°(general purpose) for workshop versatility
✓ Space-Optimized Foldable Design: 180° flip 2-in-1 mechanism transforms into compact 10"x4" size, reduces storage volume by 60% vs traditional thread checkers. Pre-drilled holes allow wall mounting/toolbox storage. Detachable non-slip silicone base stabilizes on metal/wood surfaces during operations
✓ Dual-Function Measuring: Embedded 18cm/7" dual-scale ruler + 180° protractor for measuring bolt protrusion depth and precise angle cuts in woodworking or metal fabrication. Beyond basic thread checks. Designed for woodworking, metalworking, and home improvement tasks
✓ Heavy-Duty Performance: Anodized finish resists oil/corrosion while laser-etched markings stay legible after repeated use. Built to withstand torque and wear, it is trusted by automotive technicians and metal fabricators
