HSD Carbide Twist Drill Bit for Jade, Emerald, and Beeswax Drilling, Ceramic Grinding Drill Bit 1.5mm [Jing Warehouse] 10 Pieces

0.8mm x 23mm x 10mm x 0.8mm

1.0mm x 27mm x 15mm x 1.0mm

1.2mm x 32mm x 15mm x 1.2mm

1.5mm x 38mm x 15mm x 1.5mm

1.8mm x 40mm x 18mm x 1.8mm

2.0mm x 45mm x 20mm x 2.0mm

3.0mm x 60mm x 30mm x 3.0mm

3.5mm x 65mm x 33mm x 3.5mm

4.0mm x 75mm x 40mm x 4.0mm

All dimensions are manually measured; slight variations may occur between batches

Actual product size and details should be considered final

When drilling, keep the drill bit or gemstone submerged in water or apply water continuously to cool the drill bit

For glass or stone materials, start drilling at a 45° angle slowly to create a crescent groove for positioning, then proceed vertically

Suitable for installation on micro electric drills and similar drilling machines

Certified by Shanghai Daweishi Certification Co., Ltd.

Complies with GB/T190 standards for metal fasteners

Product is designed for professional use in gemstone drilling and processing

High-speed operation with efficient chip removal enhances drilling performance