Jonard 1/4-Inch x 4-Inch Combination Drill Bit for Wood and Masonry

Designed to drill through wood and masonry walls for installing the computer, security, phone, and cable small wire systems, this drill bit eliminates the need to carry multiple drill bits with you, perfect for any installer. This  drill bit also features the following:

Features:

• Aggressive tip drills through wood, masonry, and other similar materials with ease
• 4" length for extra stability and portability
• Black oxide-coated shaft and powder-coated blue for greater rigidity, durability, and rust resistance