Unlock the Power of Precision Tackle any project with ease and confidence. Designed for DIY enthusiasts, professionals, and hobbyists alike, these versatile drill bits deliver fast, efficient performance across a range of materials. Whether you're working with concrete, glass, tile, or wood, these high-quality bits provide an edge like no other! FEATURES PREMIUM MATERIAL: Made of 6542 HSS Carbide with a reinforced head to prevent bit cracking. The twist drill bit set is made from durable alloy, ensuring a longer lifespan. UNIQUE DESIGN: Features a U-type slot design for quick dust removal, and an anti-skid triangle handle for a tight and stable grip during use. WIDE USAGE: The spear-pointed, tungsten carbide tip can easily penetrate various materials such as tile, concrete, brick, glass, plastic, and wood, while minimizing breakouts. DRILL BIT SET WITH 4 DIFFERENT SIZES: Includes sizes: 6mm (1/4"), 8mm (5/16"), 10mm (3/8"), and 12mm (1/2"). TIP: When drilling through hard materials like glass, porcelain, marble, or granite, use water for lubrication. The Multi-Material Twist Drill Bit is crafted from high-quality cemented carbide, preventing drill cracking and improving overall durability. One drill bit replaces two, serving as both a glass/tile drill bit and a standard drill bit. The pointed carbide design ensures easy penetration through various materials. The U-type slot design facilitates quicker opening speed and efficient chip removal. SPECIFICATIONS Material: Hard Alloy Tool Holder Type: Triangle Handle Cooling Type: Outer Cold Blade Top Corner: 135° Category: Hole Expansion Drill PACKAGE INCLUDED 1 set of Multifunctional Drill Bits (2 × 6mm, 1 × 8mm, 1 × 10mm, 1 × 12mm) Optional: 5/10 pcs Multifunctional Drill Bits