Uolor Mini Twist Drill Bit Set, 10Pcs Micro Engraving Drill Bits, 0.6mm-2.2mm, HSS 2.35mm Shank Titanium Coated Tiny Drill Bit Hole Drilling Tool for DIY Resin, Jewelry, Amber, Circuit Board, Walnut

High QualityCrafted from quenching high-speed steel with titanium plating, our twist drill bits feature hardened and honed cutting edges for exceptional sharpness and durability. With a chatter-free design, they offer excellent toughness, high hardness, and rust resistance, ensuring they won't easily break

Versatile SetThis set includes 10 drill bits in various sizes, ranging from 0.6mm to 2.2mm in cutting edge diameter. Each size is represented with one piece, meeting a diverse range of drilling needs

High EfficiencyThe fully ground spiral groove design swiftly clears particles, reducing friction and heat for faster and cooler drilling. The straight shank prevents walking, ensuring precise drilling and greatly improving work efficiency

Easy to UseFeaturing a uniform handle diameter of 2.35mm, our drill bits offer convenient clamping. The large chip removal space allows for easy and quick chip removal. When drilling holes, it's essential to release the foam to prevent bursting due to powder blockage

Wide ApplicationCompact and lightweight, our drill bits are compatible with pin vises, electric and cordless power drills, and rotary drills. Suitable for drilling and engraving materials such as jewelry, amber, beads, beeswax, resin, circuit boards, leather, wood, olive, walnut and more