Multifunctional Drill Bits

FEATURES PREMIUM MATERIAL: 6542 HSS Carbide with a reinforced head that prevents bit cracking; Twist drill bit set made of hard and durable alloy, provides longer life. UNIQUE DESIGN: U type slot design with fast drilling dust remove, antiskid triangle handle allows the drill bit to be held tightly and stable in power drill. WIDE USAGE: Spear pointed design strong tungsten carbide tip can easily penetrate various material like tile, concrete, brick, glass, plastic, and wood, etc, and reduces breakout. DRILL BIT SET WITH 4 DIFFERENT SIZES:  6mm(1/4"),  8mm(5/16"), 10mm(3/8"), 12mm(1/2"). TIP: When drilling hard material such as glass, porcelain floor tile, marble, granite, etc, please use water for lubrication. PRODUCT DESCRIPTION The material of Multi-Material Twist Drill Bit is high quality cemented carbide, which prevents drill cracking and improve durability. One drill bit replaces two drill bits (glass & tile drill bit and drill bit). Pointed design with carbide