1.5mm Extra-Long Diamond Wire Hollow Core Drill, 65mm Length, 20pcs – Deep Precision Coring for Glass, Stone & Ceramic

The 1.5mm Extra-Long Diamond Wire Hollow Core Drill 20-piece set features an extended 65mm overall length, specifically designed for deep-hole micro coring and through-hole drilling in glass, stone, ceramic, jade, agate, and lapidary materials. The thin-wall hollow wire design ensures minimal material loss, reduced cutting resistance, and smooth debris extraction.

Key Features

• Extended 65mm Reach: Provides the extra reach necessary for drilling through thicker stones, beads, glassware, and deep core samples.
• Thin-Wall Hollow Design: Delivers clean core extraction with minimal chipping on delicate workpieces.
• Premium Electroplated Diamond: Uniformly coated diamond grit ensures consistent cutting efficiency and durability.
• Rotary Tool Compatibility: Features a standard 2.35mm shank compatible with standard high-speed rotary tools, flexible shafts, and bench drill presses.
• 20-Piece Bulk Value: Ideal for jewelry making, gemstone carving, glass crafting, and scientific applications.

Specifications

• Outer Diameter: 1.5 mm
• Overall Length: 65 mm
• Shank Diameter: 2.35 mm
• Quantity: 20 pieces
• Abrasive: Electroplated Diamond
• Primary Applications: Glass, stone, ceramic, jade, agate, porcelain
• Operation Note: Wet drilling with water cooling is recommended for optimal cutting performance and tool longevity.