HSD Carbide Twist Drill Bit for Jade Glass Amber Drilling Needle Ceramic Grinding 3.5mm【Jing Warehouse】5pcs

High wear resistance and durability

Electroplated diamond particles for enhanced cutting performance

45° drill tip with threaded chip removal grooves to prevent clogging and improve drilling efficiency

Two-flute symmetrical design for precise and stable drilling without deviation

High-temperature quenching for improved hardness and wear resistance

Smooth polished finish with durable diamond plating that resists grit shedding

Compatible with high-speed bench drills, hand drills, rotary tools, and punching machines

Suitable for drilling holes in gemstones such as jadeite, agate, pebbles, Hetian jade, and other similar materials

Requires water cooling during drilling (drip water or submerge stone) to protect the drill bit

0.8mm x 23mm x 10mm x 0.8mm

1.0mm x 27mm x 15mm x 1.0mm