Diamond Drill Bits 40 Pack 150 Grit Micro Tip Burr Set 1mm 1.5mm 2mm 2.5mm Rotary Tool Accessories for Drilling Grinding Sea Glass Ceramic Stone Tiles Jewelry Making Craft Engraving Metal Shanks

• 【PRECISION ENGRAVING & INTRICATE DETAILING】: This professional micro-diamond burr collection offers a premium, meticulous method to execute high-accuracy drilling and shaping on delicate mediums. Featuring a dense 150-grit abrasive coating, these fine rotary points glide seamlessly into tight corners, allowing artisans to create smooth contours without fracturing fragile structural edges.
• 【40 PIECE BULK VARIETY & EXACT DIAMETER METRICS】: This comprehensive budget-saving multi-pack includes 40 identical miniature bits, containing 10 pieces of each essential gauge: 1.0mm, 1.5mm, 2.0mm, and 2.5mm. Proportioned with a standard 2.2mm (approximate 3/32 inch) shank diameter and a 26mm stem length, they provide a reliable, universal fit for your workshop arsenal.
• 【INDUSTRIAL DIAMOND GRIT & REINFORCED SHANK STEEL】: Forged from high-density, industrial-grade matrix diamond particles electroplated onto a premium tempered alloy steel core. This advanced metallurgical construction exhibits exceptional structural hardness and thermal resistance, ensuring the tips remain sharp and resist snapping or bending under consistent rotation.
• 【ROTARY TOOL COMPATIBILITY & BALANCED CONCENTRICITY】: Engineered with an optimized concentric alignment to reduce vibration, these micro-abrasive pins deliver stable performance across varying velocity ranges. They mesh safely with standard chuck systems and are widely compatible with most multi-tool rotary setups, offering fluid control for intricate creative hobbies.
• 【VERSATILE MATERIAL ADAPTABILITY & COOLING MAINTENANCE】: The ultimate detail companion for sculpting sea glass, drilling ceramic tiles, shaping resin charms, engraving beach stones, or piercing pottery. Simply insert into your device collet and apply light, continuous pressure; always use water lubrication during operation to preserve the abrasive layer and extend the life of the tips.

Master Fine Craftsmanship with Industrial Precision – The Advanced 40-Piece Micro Diamond Drill Bit Assortment for Lapidary Art, Glasswork, and Custom Jewelry Making. Are you looking for a dependable, high-hardness solution to pierce delicate sea glass, etch smooth patterns into hard river stones, or create fine holes for jewelry jump rings? Our 40-pack electroplated diamond micro-boring tips provide the ultimate physical solution. Proportioned across four essential small-scale diameters, these versatile bits integrate smoothly into your creative workflow, ensuring balanced cutting actions and clean entry points across dense materials without ruining intricate workpiece details. 🌟 Why This Upgraded 40-Piece Diverse Boring Set Outperforms Standard Carving Points: Calibrated Four-Size Distribution: Contains 10 pieces each of 1mm, 1.5mm, 2mm, and 2.5mm profiles, providing you with the exact tip volume required to alternate between delicate micro-channel etching and broader structural material removal instantly. Industrial-Grade Abrasive Matrix: The dense 150-grit diamond particles are firmly anchored using an advanced electroplating bonding layer, guaranteeing that the tips resist peeling, shedding, or smoothing out even when confronting hard stones or granite. Universal Rotating Chuck Alignment: Designed with a standardized 2.2mm straight metal shank that interfaces flawlessly with mainstream hobby rotary tools and miniature die grinders, allowing for rapid accessory swaps during complex multi-stage tasks. Wide-Scope Medium Versatility: Acts as an efficient all-rounder that works cleanly on stained glass, porcelain plates, cured epoxy resin, quartz crystals, hardwood beads, seashells, and even intricate model figurines. 🛠️ Detailed Product Specifications: Set Quantity: 40x Micro Diamond Tipped Drill Bits (10x 1.0mm, 10x 1.5mm, 10x 2.0mm, 10x 2.5mm) Grit Density Index: Medium Fine 150-Grit Coating Shank Fitting Diameter: 2.2 mm / Approximately 3/32 Inch Total Bit Length: 26 mm / 1.02 Inches Material Composition: Hardened Carbon Steel Rod Body + Industrial Diamond Crystals ✅ Professional Operational and Lubrication Guidelines for Optimal Lifespan: Secure the selected shank deep inside your rotary tool's collet chuck and tighten firmly to eliminate axial runout. When initializing a hole on smooth surfaces like glass or glossy ceramic tiles, hold the tool at a slight 45-degree angle to create a starter notch, then gradually bring the rod up to a straight vertical position. To maximize tool durability, always apply a steady drip of water, wet sponge, or oil coolant to the target drilling zone; operating the diamond matrix dry will cause extreme thermal buildup, rapidly destroying the abrasive grip and dulling the cutting performance.