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JB Industries SAE hex key adapter, 3/16 and 5/16 tips, black oxide finish

JB Industries

JB Industries T2-HKA SAE Adapter Hex Key 3/16 5/16

SKU CH-21MM-WMSH9

Heat-treated black oxide hex key with 3/16 and 5/16 tips opens liquid and suction valves

  • Access liquid and suction valves efficiently with dual SAE hex tips
  • Heat-treated black oxide coating resists wear for extended service life
  • Single adapter handle fits both 3/16" and 5/16" valve sizes
  • Saves time switching tools on HVAC service calls
  • Professional-grade construction from JB Industries for reliable performance

Purpose and user

The JB Industries T2-HKA SAE Adapter Hex Key is built for HVAC technicians who service liquid and suction based valves. Its dual tip sizes cover two common valve dimensions in a single tool. The heat treated black oxide coating adds durability for repeated professional use. It is not suited for tasks that require metric hex sizes or driver styles beyond the two SAE tips provided.

Fit in a toolkit

The adapter style handle accepts both 3/16 inch and 5/16 inch tips without needing separate keys. This reduces the number of loose pieces a technician carries to a job site. The compact form fits in standard service pouches and leaves room for gauges, hoses and refrigerant cans. It does not replace a full hex set when additional sizes or torque handles are required.

Behaviour under load

Heat treated steel resists rounding when valves are seized or require high turning force. The black oxide finish helps prevent corrosion during extended exposure to moisture and refrigerant oils. Both tips maintain their profile through daily use on commercial and residential systems. The tool is not designed for impact drivers or powered torque applications.

Highlights

  • Access liquid and suction valves efficiently with dual SAE hex tips
  • Heat-treated black oxide coating resists wear for extended service life
  • Single adapter handle fits both 3/16" and 5/16" valve sizes
  • Saves time switching tools on HVAC service calls
  • Professional-grade construction from JB Industries for reliable performance

Specifications

BrandJB INDUSTRIES

Questions about this item

How long does the heat-treated black oxide coating last under daily HVAC valve work?

The heat-treated black oxide coating is designed to ensure the tool lasts long during repeated use on liquid and suction based valves.

Does the adapter handle get hot or slip after hours of continuous turning?

The adapter handle is built for sustained operation on valves without overheating or losing grip during extended sessions.

What valve sizes must my system have for the 3/16" and 5/16" tips to fit?

The dual tips fit SAE liquid and suction valves measuring 3/16" and 5/16" respectively, so your system must use those exact sizes.

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