24 Pieces Crystal Set Includes 4 Brass Collets Rotary Tool Accessory

Comprehensive Kit: This 24-piece drill tip set provides a comprehensive set for accurate work, featuring 20 Hard-surface-coated bits in four essential sizes and 4 matching brass collets.

High-Performance Material: Each piece in this Hard-surface drill tip set is crafted with a 120-grit Hard-surface coating that increases the head diameter by 0.3mm for superior gritty strength and durability.

Accurate Engineering: These tiny twist are designed with a distinctive helical flute geometry that ensures efficient chip removal and even drilling through tough materials like glass and stone.

Universal Compatibility: As a versatile rotary tool accessory, the included brass collets (1.0mm to 2.5mm) ensure these bits are fully compatible with rotary tool brand and other common rotary tools.

Creative Versatility: This jewelry drilling drilling accessory kit is the perfect companion for DIY hobbyists looking to create personalized sea glass pendants, stone earrings, or intricate PVC crafts.