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Black fold-up hex key set with five SAE keys in plastic handle

National Manufacturing Co.

National Manufacturing Co. N272-708 Large V7022 SAE 3/16"-3/8" Black Foldup Hex Key Set

SKU CH-S67S-MPCTY

A compact foldup set holds five SAE hex keys from 3/16" to 3/8" with marked sizes and a spring-loaded case for secure positioning

  • TypeHex Drive Bits
  • Selling UnitEach
  • Compact fold-up set stores five SAE hex keys in one handle
  • Chrome-nickel alloy steel drawn to tight tolerance for lasting strength
  • Sharp clean hex corners engage fasteners securely
  • Flat spring holds each key at any working angle
  • Sizes marked on handle for quick identification

Large SAE Foldup Hex Key Set

The National Manufacturing Co. N272-708 Large V7022 set provides five SAE hex keys in a single folding handle. It covers 3/16, 7/32, 1/4, 5/16 and 3/8 inch sizes for common automotive and maintenance tasks. The compact design keeps the correct key ready without loose pieces.

Spring-Loaded Folding Mechanism

A flat spring in the case bottom holds each key firmly at any selected angle during use. The mechanism prevents unwanted movement while allowing quick deployment and retraction. Sizes are clearly marked on the handle for immediate identification without guesswork.

Chrome Nickel Alloy Steel Construction

Keys are made from 8650 chrome nickel alloy steel drawn to a tolerance of plus .000/minus .001 for precise fit. Sharp, clean hex corners reduce the risk of rounding fastener heads under torque. The black finish adds corrosion resistance for workshop durability.

Highlights

  • Compact fold-up set stores five SAE hex keys in one handle
  • Chrome-nickel alloy steel drawn to tight tolerance for lasting strength
  • Sharp clean hex corners engage fasteners securely
  • Flat spring holds each key at any working angle
  • Sizes marked on handle for quick identification

Specifications

TypeHex Drive Bits
Selling UnitEach

Questions about this item

Which hex key sizes does the 5-in-1 set include?

The set contains five SAE keys: 3/16", 7/32", 1/4", 5/16" and 3/8", all marked on the handle.

What does the 8650 chrome nickel alloy steel rating mean for daily use?

The material is drawn to a tolerance of plus .000/minus .001, giving sharp, clean hex corners that resist rounding.

How does the flat spring in the case affect the keys during use?

The spring holds each key at any angle you set, so it stays open while you work and folds back when finished.

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