Milwaukee Thunderbolt 21/64 In. Titanium Drill Bit Masonite Steel security door featuring powder

Steel security door featuring powder coated finish with matching 24-gauge expanded steel mesh for added security

Milled face provides aggressive grip pattern

Effective for interior and exterior applications

Forged for strength and rust protection for long life

Milwaukee Thunderbolt 21/64 In. Titanium Drill Bit Masonite Steel security door featuring powderMilwaukee Thunderbolt Titanium coated drill bits are designed for extreme durability and up to 3X longer life. The Thunderbolt web features a thicker core than a standard drill bit to provide ultimate strength and protect against side load breakage. The titanium coating reduces heat build up and keeps the bit sharp to extend performance. A specially designed parabolic flute form clears chips fast, while the 3 Flat Secure Grip shank holds the bit