This 2-Piece Magnetic Nut Driver Set From Klein Tools Features Two of the Most Frequently Used Nut Driver Sizes. 

They Feature Full 6'' (152 mm) Hollow Shafts That Fit Easily Over Extra-Long Bolts and Studs. 

The Handle End Is Also Color Coded To Easily Identify the Nut Drivers In A Tool Bag or Pouch.

• General Purpose Selection of the Most Frequently Used Nut Drivers.
• Includes Two Nut Drivers (Cat. No. 646-1/4M and 646-5/16M).
• Hollow Shaft Design with Rare Earth Magnetic Tip Facilitiates Work On Bolt Applications
• Handle End Is Color-Coded For Easy Identification.
• Internal Flanges Provide Solid, Twist-Resistant Shank Anchor.
• Cushion-Grip Handle Allows For Greater Torque and Comfort.

Klein Tools 646M Magnetic Tip Hollow Shaft Nut Driver Set 1/4 and 5/16 HVAC New