The Goldilocks Screw Gauge™ is a precision stainless steel tool with six graduated steps, ideal for accurately identifying the correct screw diameter for optical frames.
Precision-milled tool with six "steps" of increasing diameter for perfect screw barrel fit
Color-coded chart aligns with most major screw suppliers for easy reference
Includes customizable chart for adjusting to alternative color codes
Crafted from durable stainless steel for long-lasting use
