SUNJOYCO 8 PCS Masonry Drill Bit Set, Four Blade Drill Bits for Concrete, Tile, Ceramic, Wood, Glass, Marble, Industrial Grade Carbide Tips Bits, 15/64", 5/16", 25/64", 15/32", 9/16"

SUNJOYCO 8 PCS Masonry Drill Bit Set, Four Blade Drill Bits for Concrete, Tile, Ceramic, Wood, Glass, Marble, Industrial Grade Carbide Tips Bits, 15/64", 5/16", 25/64", 15/32", 9/16"

• Material Compatibility: The four-edged serrated drill bits work on wood, brick, porcelain, ceramic tile, marble, glass, and thin metal sheets, but are not suitable for granite or reinforced concrete
• 5 Drill Bit Sizes: Includes 15/64" (6 mm), 5/16" (8 mm), 25/64" (10 mm), 15/32" (12 mm), and 9/16" (14 mm). The 4-blade serrated eccentric drill bits are suitable for common drilling tasks
• Stable Drilling: The four-edged design helps keep drilling steady and reduces slipping. U-shaped grooves remove debris and control heat. Drill vertically at low speed (500–1500 RPM) and use water to keep the bits cool
• Built to Last: Industrial-strength carbide tips are hard, wear-resistant, and heat-resistant, keeping the cement drill bits sharp and reliable during repeated use
• 1/4" Hex Shank: The concrete drill bit set fits most cordless and electric drills. The hex shank ensures a secure, slip-resistant fit in the chuck