Handi-Cut Knife Blade, 5-pack. This blade (part number 9-37253) is for Handi-Cut utility knives.Handi-Cut knife blade 9-37253 contains 5 replacement blades. Each blade is 3-7/8-inch long. Wear work gloves to protect your hands when installing this part.... - Handi-Cut Knife Blade, 5-pack.