Klein Tools 640-5/16 5/16 x 6-3/4 Inch Plastic Handle Yellow Coated Hollow Shaft Nutdriver
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Manufacturer Klein Tool
Mfg Catalog # 640-5/16
North Coast Part # 492216


  • Entire shank plastic coated for circuit protection only. NOT INSULATED
  • Special plastic coating resists cutting, cracking, and chipping
  • Thin coating permits use in confined areas
  • Full hollow shafts facilitate work on stacked circuit boards or other long bolt applications
  • Internal flanges provide solid, twist-resistant shaft anchor
  • Premium chrome plated for smooth feel and corrosion resistance
  • Meets or exceeds applicable ASME / ANSI specifications
  • Handle end is also color coded for easy identification
  • Cushion-Grip handle allows for greater torque and comfort
  • Tip-Ident® quickly identifies nut driver and size


  • Always wear approved eye protection.
  • NOT insulated. Will NOT protect against electrical shock.
  • NOT insulated. Coating is intended for protection of circuits only.


  • Shaft Length: 3" (7.6 cm)
  • Magnetic: No
  • Overall Length: 6.75" (17.2 cm)
  • Nut Driver Sizes: 5/16"
  • Sub Brand: Cushion-Grip
  • Weight: 4 oz (113 g)
  • Color Code: Yellow
  • Insulated: No
  • Style_Name: 5/16-Inch Tip
  • Size_Name: 3-Inch Shaft
  • Country of Origin: United States
  • Item Height (in): 1.0170
  • Item Width (in): 2.3670
  • Item Depth (in): 6.7500
  • Item Weight (lbs): 0.2500


UPC 09264465023
GTiN 00092644650239
Weight 4 oz
Family Brand Name Klein Tools
Overall Length 6-3/4 in
Color Yellow
Type Coated
Shank Size 3 in L
Handle Type Cushion Grip
Shank Length 3''
CA Prop65 Warning WARNING: Cancer and Reproductive Harm See www.P65Warnings.ca.gov for more information.
Insulated? No
Color Coding Yellow
Sub Brand Cushion-Grip

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