Our all-new Machinist Reference Cards are here to put the formulas, dimensions, and conversions you use most right at your fingertips. Laser-engraved with high contrast markings, this is the ultimate pocket tool for any machinist, engineer, or fabricator.
Ultra-thin credit-card profile — fits perfectly in your wallet, shirt pocket, or tool chest.
Durable stainless steel with a beautiful burnt finish.
Double-sided engraving with essential machinist formulas.
Includes rulers in both imperial and metric units (0–2" and 0–70 mm).
Front side: Cutting speeds, feeds, torque, and MRR formulas for milling and turning.
Back side: Class 2A/2B UN and 6H/6g thread formulas with diagrams.
Laser-etched for permanent, high-contrast readability.
