Diamond Coated High Speed Steel Twist Drill Set of 15 on 3/32" Shanks-0.70mm to 2.1mm

These top-quality diamond-coated high-speed steel twist drills are mounted on 3/32" (2.35mm) diameter shanks, making it faster and easier to change from drill to drill—especially when using a fixed collet handpiece such as a quick-change handpiece. The 3/32" shank diameter is the popular standard in the jewelry industry and is compatible with a wide range of flex-shaft and rotary handpieces. Diamond drills perform best when used with lubrication to extend life and improve cutting efficiency.

This assortment includes 15 diamond-coated twist drills ranging from 0.70mm to 2.1mm in 0.1mm increments, providing a complete size progression ideal for stone setting, bead drilling, and precision metalwork.

Features

• Diamond-coated high-speed steel twist drill construction
• 3/32" (2.35mm) diameter shanks—jewelry industry standard
• Size range of 0.70mm to 2.1mm in 0.1mm steps
• 15 drills included—one of each size
• Ideal for use with quick-change handpieces and fixed collet systems
• Best used with lubrication for optimal performance and tool longevity

Specifications

What's Included

• 128.727–0.7mm
• 128.728–0.8mm
• 128.729–0.9mm
• 128.730–1.0mm
• 128.731–1.1mm
• 128.732–1.2mm
• 128.733–1.3mm
• 128.734–1.4mm
• 128.735–1.5mm
• 128.736–1.6mm
• 128.737–1.7mm
• 128.738–1.8mm
• 128.739–1.9mm
• 128.740–2.0mm
• 128.741–2.1mm

Notes

• Use with lubrication for best results and extended drill life.
• Individual diamond twist drills on 3/32" shanks are also available separately.