Aiskaer 60 Pcs Premium Diamond Drill Bit Cylindrical Burr Kit Jewelry Beach Sea Glass Shells Gemstones Lapidary.1mm 10pcs.2mm 10pcs.3mm 10pcs

Make Clean Holes in Tiles, Marble, Rocks, Ceramic, Porcelain, Gemstones

MULTIPLE DIAMETER 6 Pieces of Dry diamond drill bits kit for drilling holes diameter of 1 2 inch(12mm), 3 8inch (10mm), 5 16inch (8mm) and 3 16inch (5mm), and 6mm carbide drill bits.

HIGH QUALITY DIAMOND DRILL BIT SET with RUSTLESS, CUTS QUICKLY - Made from high strength carbon steel with nickel plating surface makes these drill bits durable and precise; The bit's tip head is made of 80 grit diamond coating, which is uniform; It great helps to increase the drilling speed and more sharper than other ordinary hole saws

Widely Used Our solid bit needle with high precision, more accurate grinding, suitable for jewelry, ceramics, jade, agate, glass and semiconductor materials, etc., which is a good drilling tool for you to choose from.

Material Lapidary drill bits made from diamond powder, high-quality, precise and sturdy to use

SIZE - 1mm diameter, 11mm length twist drill bit with 0.7mm shank.

HIGH QUALITY DRILL BIT; Tile drill bit, Industrial strength carbide drill bit tip, excellent abrasion resistance, make the drilling much more easier. this ceramic tile drill bits can easily penetrate various material (glass, ceramic tile, marble, wood, travertine, ceramic, stone, concrete, brick, hard plastic, cement, etc.)

Dry drilling without water,Use water for longer time

Different Size This diamond tipped drilling bit set has a variety of sizes for you to choose 0.8 1.0 1.2 1.5 1.8 2.0 2.5 3.0 3.5 4.0mm, to meet your different needs, the material hardness is different, the effect is also different.

Shockproof Structure Provides excellent stability, ensuring accurate and smooth drilling. Very suitable for drilling masonry materials

Diamond Coating Top Each hole is smooth and precise surface treatment, and the thick diamond coating on the top can provide excellent cutting strength to achieve the maximum drilling effect.

SIZE - 1mm diameter, 11mm length twist drill bit with 0.7mm shank.

Grinding and Polishing Jade polishing bits remove impurities, scratches, etc. on the surface of jade by rotating, making the surface of jade smoother, more delicate and showing its unique luster. Polishing bits are usually made of diamond, aluminium oxide and other materials with high hardness and wear resistance, which can complete the polishing work efficiently.

5 Different sizes - Cutting diameter 5mm(0.2"), 6mm(0.24"), 8mm(0.31"), 10mm(0.39"), 12mm(0.47"); Overall Length 50mm(1.97")

Premium Diamond-Coated Construction Diamond drill bit set ismade with high-grade diamond powder for exceptional hardness and precision, enabling clean holes through tough materials like jade, agate, and glass without cracking or chipping delicate surfaces

Drill Bit Design The drill bits are made of diamond grains with wax lubricants, which melt during dry drilling and cool the cutting surface. Water can serve as an additional coolant to prevent diamond loss and extend the lifespan of drill bits.

Applicable Machine Widely used in rotary tool such as hand drills, drill press, flex shafts, bench drill and hanging mill.

NICKEL PLATED SURFACE - Nickel plating surface can extend the service life and enhance the surface corrosion resistance. Diamond coating maximizes performance and retains a sharper cutting edge than traditional carbide or bimetal hole saws.

Surge Forward With Irresistible Force Upgraded dry drilling diamond drill dits integrated with Wax Lubricant full inside which melts while dry drilling and cools the cutting surface(water can be used as additional cooling to prolong the life of the bit). Surface plating built-in prevents the drill bit from rusting, cuts faster and lasts longer

Quality material The diamond burr is made of high quality fine grit hard alloy. The grit is uniform, durable and wear resistant and can be used for finishing various metal mold cavities.