pcd diamond engraving bit
pcd stone carving bits
pcd diamond engraving bit
pcd stone carving bits

PCD Diamond Engraving Bit

This PCD Diamond Engraving Bit is specially engineered for CNC stone engraving. It features one-piece diamond cutter head and high-precision tungsten steel body. Stepped shank prevents slipping. Ideal for lettering on granite, marble tombstones, also works on alloy, copper and aluminum. Compatible with CNC engraving & milling machines.

Black Storm Series Diamond Engraving Bit, patented utility design. Reduce cost and improve efficiency, the killer for granite.

01 One-piece Diamond Tip, Wear-resistant & Long-lasting

Our PCD Diamond Engraving Bit adopts integrated diamond cutter head, delivering outstanding wear resistance and long service life.

02 Premium Tungsten Steel Material

High-precision tungsten steel shank with high strength and deformation resistance.

Stepped Shank, Anti-slip Design

Thickened imported diamond blade is applied. Stepped shank effectively prevents slipping during processing, greatly improving engraving efficiency and stability.

Complete Specifications for Different Working Conditions

2-flute cutting design ensures uniform cutting force. Faster processing speed and smoother workpiece surface with better finish. Wide range of specifications to meet various working scenarios.

Wide Application

Suitable materials: stone, hard alloy, copper, aluminum and other materials. Applicable machines: CNC engraving machines, CNC milling machines.

Notes for Use

Diamond blade features high hardness with certain brittleness. Replace collets and nuts regularly to guarantee good clamping concentricity and avoid chipping caused by abnormal vibration. If your engraving machine is aged with increased assembly clearance, abnormal vibration may occur. Maintain the machine timely.

Recommended Parameters for Granite Lettering

  • Spindle Speed: 24000 R/MIN
  • Feeding Speed: 3000 MM/MIN
  • Z-axis Plunge Speed: 200 MM/MIN
  • Feed Rate: 80%
  • Engraving Depth: Max 1.5mm per pass; use multi-depth cutting for deep engraving.

Note: The parameters are for reference only. Adjust according to stone hardness, font and engraving depth.