Funnytek 10PCS Masonry Drill Bits Set, Concrete Drill Bit Eccentric Drill

• 【YG6A Hard Alloy Steel】These four blade serrated eccentric drill are manufactured from YG6A cemented carbide(93 HRC), these high-temperature forged bits offer superior wear resistance and extended lifespan. Four large chip flutes enhance heat dissipation for efficient dry drilling
• 【Serrated Eccentric Design】This drill is an eccentric drill, adding a serrated design on the basis of the four-edged drill, which is sharper and more efficient in drilling. The spiral grooves quickly remove debris, preventing overheating and bit damage. Ideal for both professional and DIY use
• 【Applicable Models】These concrete drill bits sets feature a 1/4-inch hex shank with a dual-slot design, effectively preventing slippage and wobbling. They are compatible with cordless drills, hand drills, screwdrivers, bench drills, machine tool. For dual-function drills, simply switch to standard mode (turn off impact) for optimal performance
• 【Wide Compatibility】It can be dry punched. It is suitable for tiles, glass, quartz, ceramics, bricks, granite, marble, plastic, wood. It is a good helper for home decoration and industrial applications.(For even better performance, using water cooling during drilling can further prolong the bit’s life and increase drilling speed)
• 【Package Details】It contains 10 bits 6mm×4, 8mm×2,10mm×2,12mm×2 with maximum working depths of ≤45.0mm, ≤60.0mm, ≤66.0mm, and ≤68.0mm respectively. The set covers a range of drilling needs, making it easier to choose the right bit for different materials and projects

Feature: 【Efficient Chip Removal】Featuring a cross-edge design, this 4-tooth eccentric drill bit rapidly disperses material debris during drilling, effectively reducing clogging during operation. This design helps maintain drill bit cooling, ensuring consistent performance during continuous drilling. Experience smoother operation when working with hard, brittle materials like tiles and marble. 【Hard and Wear-Resistant】Crafted from good-quality hard alloy steel, the high strength eccentric drill bit set boasts good hardness and abrasion resistance. It effortlessly handles the smooth surface layer of tiles as well as the hard stone or wood beneath, effectively resisting wear and extending tool lifespan. 【Wide Compatibility】The hexagonal shank design of this drill bit set securely locks into chucks of common cordless drills and impact drivers, preventing slippage. This broad compatibility makes it suitable for most major power tool brands, ensuring effortless use for both professional projects and home repairs.(Do not use lithium-ion drills rated below 24V. When drilling into hard materials, add water to cool the drill bit. Avoid striking rebar during operation.) 【Versatile Applications】The hexagonal shank drill kit not only drills clean holes in tiles and marble without edge chipping but also effectively handles common materials like wood and plastic. This multifunctionality makes it a practical choice for installing kitchen/bath fixtures, home renovations, or woodworking projects. Specification: Material: Hard Alloy Steel Shank Diameter: 6.35mm/1/4" Cutting Diameter: 6mm/0.23in, 8mm/0.31in, 10mm/0.39in, 12mm/0.47in Note: Please allow for manual measurement errors and color differences. Package Included: 10 PCS * Hard Alloy Steel Drill Bits