• Snap-on® impact extensions are heat treated to optimize impact service life with a lower hardness and able to withstand repeated cycling loads of impact wrenches
• Snap-on® uses a proprietary blend of special alloy steel that provides long life and great strength
• Industrial, black-oxide, finish helps protect against corrosion
• Includes IMX11–IMX111 (1-3/4, 3, 6 and 11") in a storage tray
Country Of Origin USA