Product Description

The CNC Diamond Finger Bit D20×40T with 1/2" Reverse Gas connection is designed for CNC machining operations that require precise shaping, controlled stock removal, and smooth performance when working with quartz, quartzite, granite, and hard natural stone.

With a smaller diameter and shorter height, this finger bit offers improved maneuverability and precision for detailed CNC work while maintaining consistent cutting performance and long tool life on professional machining centers.

Built using high-quality diamond segments and a reinforced steel body, the D20×40T finger bit delivers stable machining, reduced vibration, and dependable performance in production environments.

The 1/2" Reverse Gas (G) thread ensures secure mounting and accurate alignment for CNC machines requiring reverse-thread compatibility.

Common Uses / Key Features

• Smaller diameter for precision CNC machining

• Shorter height for controlled shaping and detailing

• High-quality diamond segments

• Stable, vibration-controlled performance

• Designed for professional CNC stone fabrication

Product Details / Specifications

• Diameter: 20 mm

• Height: 40 mm

• Connection: 1/2" Reverse Gas (G)

• Technical Notation: D20×40T × 1/2" Reverse G

• Tool Type: CNC Diamond Finger Bit

Materials Used On

• Quartz

• Quartzite

• Granite

• Hard natural stone

Recommended CNC Applications

• Sink cut-outs

• Pocket milling

• Slotting

• Internal shaping

• Precision material removal

Available Sizes

• D20 × 40T