Maximum Access: The FLT-38-BG

The FLT-38-BG is the heavy-hitting companion to the slim-tip series. It bridges the gap between high-capacity industrial tools and precision maintenance gear. Featuring an expansive 38mm opening but maintaining a specialized 4mm thin-jaw profile, this wrench allows you to tackle large-diameter fasteners in cramped quarters that would typically require a much bulkier, standard-thickness tool.

Jaw Opening Width: 0 to 38mm

Technical Specifications

Total Length: 214mm
Weight: 284g
JAN Code: 4952520852316
Package Size: 235 x 106 x 13 mm

KUROKIN FLT-38-BG Large Capacity Thin Jaw Adjustable Wrench Dimension Diagram

Detailed Dimensions (mm)

Overall Length: 214.7
Head Height: 69
Max Jaw Opening: 38
Head Width: 13.9
Jaw Depth: 16
Tip Thickness: 4

KUROKIN FLT-38-BG 4mm ultra-thin jaw for industrial maintenance

Industrial Slim-Tip Engineering

The FLT-38-BG is designed for professionals who need high capacity without the bulk. Its specialized 4mm thin-jaw profile is ideal for accessing nuts in narrow spaces, such as double-nut configurations or caster installations. Despite its slim build, the tapered design provides the necessary surface contact to turn large fasteners securely without slipping.

KUROKIN FLT-38-BG high-strength lightweight body

Skeletonized Strength

Fujiya’s advanced weight-reduction process removes unnecessary material to create a tool that is significantly lighter for all-day use. However, performance remains uncompromised; the FLT-38-BG has passed ISO torque endurance tests and is rated to withstand twice the torque requirement of JIS standards. It offers a rare combination of lightweight portability and industrial-grade durability.

KUROKIN shallower jaw angle for 35 percent reduced swing length

Confined Space Optimization

By engineering a shallower jaw angle relative to the handle, Fujiya has reduced the swing length by 35% compared to conventional wrenches. This geometry, combined with non-protruding jaws that stay flush even when fully opened to 38mm, allows for maximum maneuverability in tight engine bays or machine internals, drastically reducing the physical burden on the technician.

Fujiya Kurokin FLT-38-BG Slim Jaw Adjustable Wrench with Grip Handle

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