Klein Tools 70540 Compact Folding SAE Hex Key Set, 9-Key

Only 2 left
SKU: 70540
Regular price $12.00 USD


Klein Tools 70540 Compact Folding SAE Hex Key Set, 9-Key

The Klein Tools 70540 Compact Folding Hex Key Set combines nine commonly used SAE hex key sizes in one pocket-sized folding tool. Heat-treated chrome vanadium steel keys feature a black phosphate finish for corrosion resistance, while the reinforced nylon handle provides a sturdy, comfortable grip. Each key opens independently up to 270 degrees for flexible positioning when tightening and loosening compatible hex socket fasteners.

Best Used For

  • Tightening and loosening SAE hex socket fasteners
  • Equipment assembly, adjustment, and maintenance
  • Mechanical, workshop, and general repair applications
  • Working in confined spaces with individually folding keys
  • Keeping nine fractional-inch key sizes organized in one tool

Key Features and Benefits

  • Nine SAE Sizes: 5/64, 3/32, 7/64, 1/8, 9/64, 5/32, 3/16, 7/32, and 1/4 inch.
  • Compact Folding Design: Keeps all nine keys together for convenient carrying and storage.
  • 270-Degree Blade Opening: High-leverage blades open independently for versatile working positions.
  • Square-Cut Ends: Provide full-depth contact with compatible hex sockets to help reduce slipping and stripping.
  • Adjustable Key Tension: A #2 Phillips fastener allows blade tightness to be adjusted.
  • Heat-Treated CR-V Steel: Durable alloy steel keys with a corrosion-resistant black phosphate finish.
  • Reinforced Nylon Handle: Provides a sturdy, comfortable gripping surface.
  • Side-Entry Access: Openings in the handle provide convenient access to outer keys.

What's Included

  • One Klein Tools 70540 compact folding SAE hex key tool containing nine integrated keys

Technical Specifications

Parameter Specification
Brand Klein Tools
Model / MPN 70540
Product Type Compact Folding SAE Hex Key Set
SAE Sizes 5/64, 3/32, 7/64, 1/8, 9/64, 5/32, 3/16, 7/32, 1/4 in
Number of Keys 9
Configuration Single Folding Tool
Measurement Standard SAE
Blade Material Heat-Treated CR-V Steel
Blade Finish Black Phosphate
Blade Opening Up to 270 degrees
Key Ends Flat, Square-Cut
Key Length 2.5 in (6.35 cm)
Handle Material Reinforced Nylon
Handle Color Orange
Overall Length 4.56 in (11.6 cm)
Overall Height 1.6 in (4.1 cm)
Manufacturer Weight 6.72 oz (191 g)
UPC 092644370229
Specifications based on Klein Tools manufacturer information.

Safety: Always wear approved eye protection. This tool is not electrically insulated. Do not use on energized electrical equipment or extend the handle length.