HexSizer Heavy Hex Gauge – Pocket Nut & Bolt Sizer (1-1/16in–4-5/8in / 32–120mm) | Inch & Metric | High-Temp Laser Engraved

Meet HexSizer Heavy Hex Gauge

Compact, pocket-ready, and built to handle real-world work sites, HexSizer helps you quickly determine nut and bolt sizes with a single, unobstructed measurement from one flat edge. Its one-flat design minimizes interference from studs or adjacent hardware, so you can size on the spot with confidence.

Why this tool stands out

Engineered for demanding environments, HexSizer uses laser-engraved anodized aluminum that resists heat and wear. In temperature-rich settings—think hot units, live steam lines, or industrial lines—the gauge remains readable and durable, offering a reliable reference when time matters.

Dual sizing for versatility

Beyond a single system, HexSizer identifies both imperial and metric sizes, covering 1-1/16 in to 4-5/8 in and 32 mm to 120 mm. This dual-scaling capability makes it a flexible companion for mixed fleets or multi-site maintenance tasks.

Portability you can depend on

The tool ships with a detachable tether and a fitted sheath, ensuring it stays accessible during inspections, job walks, and routine maintenance. Its compact form fits comfortably in a pocket or tool pouch, ready when you reach for it.

Designed for industrial pros

HexSizer is ideal for millwrights, pipefitters, and technicians who work with hydraulic, pneumatic, or electric torque wrenches in challenging environments. It also makes a thoughtful, practical gift for professionals who value precise, on-site measurement.

Key benefits

• One-flat measurement design for quick sizing of installed fasteners
• High-heat capable, withstands temperatures over 1000°F
• Dual inch & metric sizing: 1-1/16in–4-5/8in / 32–120 mm
• Compact and portable with detachable tether and sheath
• Durable laser-engraved anodized aluminum construction

Real-world use scenarios

• Quick checks during maintenance rounds on hot equipment
• Sizing bolts before torque on live lines or steam-bearing systems
• On-site reference for projects with mixed metric and imperial hardware
• Pocket tool for field inspections and routine asset maintenance