BoltSizeIt Metric L-Gauge
(4mm – 20mm)

$8.99

Speed and versatility meet in the BoltSizeIt Metric L-Gauge. Designed for mechanics and parts counter staff who need to sort loose hardware rapidly, this tool utilizes a classic "L-Shape" layout to maximize measuring length while keeping the profile slim and portable.
Triple-Function Metric Sizing This all-in-one template is designed to cover the three critical dimensions of any metric fastener:
Thread Pitch ISO pitches from 0.8 up to 6.0
Diameter Check Instantly size bolt diameters from 4mm to 20mm using the calibrated sizing holes.
Length Measurement The extended L-shape design offers a 230mm ruler perfect for measuring longer bolts.
Thread Pitch Quickly identify thread pitch with the integrated Unified National Standard thread pitch gauge.
Reliability Accurate machine-molded markings.
Shop-Ready Durability Don't let the lightweight feel fool you. This gauge is molded from high-quality, impact-resistant plastic that is chemically treated to survive the workshop. It resists water, alcohol, oil, and grease, ensuring the markings remain legible even after years of use in dirty environments.

Built to Last

Size Range Measure bolt diameters from 4mm up to 20mm
Material High-impact, corrosion resistant plastic
Strength you can count on Specially formulated polymer designed to resist corrosion from grease, oil, alcohol, and water.
Wide Range Sizes diameters from small (4mm) to heavy-duty (20mm).

SPECIAL WHOLESALE PRICING AVAILABLE

Just like our other bolt gauge tool products,
special pricing is available for wholesale orders.

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