This heavy-duty 4-way chuck key replaces multiple individual keys, covering the most common standard drill sizes in a single, compact design. Engineered from ultra-durable heat-treated steel, its cross-shape layout provides maximum leverage and torque, ensuring quick bit changes without stripping your equipment.

• 4-in-1 Versatility - One tool opens four different sizes of keyed chucks.
• Maximum Leverage - The cross-shape design functions as a high-torque handle.
• Pocket-Sized Convenience - Compact shape easily fits into tool pouches or pockets.
• Industrial Durability - Drop-forged alloy steel prevents teeth from wearing flat.
• Size Compatibility - 1/4" (6mm) - 3/8" (10mm) - 1/2" (13mm) - 5/8" (16mm).