10pcs/Set PCB Mini Drill Bits Set, Tungsten Steel Carbide Spiral Flute Twist Drill Bit for Print Circuit Board Stone Jewelry CNC Engraving Machine 1.1mm-2.0mm Micro Rotary Tool Kit-Fast Shipping

Description

High QualityMade of Carbide (tungsten steel). Highly wear resistance, high hardness, bending strength, highly working efficiency.

Sharper EdgePCB tip spiral flute reduces cutting force and improves hole accuracy.

Improve Work EfficiencyPositioning ring reduce the time of machine debugging. Drill has a large scraps discharge space, little resistance and smoothly during the scraps discharge.

Widely Using ApplicationThese CNC router burrs mainly used for cutting and engraving and worked on Acrylic, PVC, Nylon, Resin, PCB circuit board perfectly.

Set of 10 Different SizeShank Diameter: Approx. 1/8″ (3.175mm); Length: Approx.1.5″ (38mm); Size: 1.1mm, 1.2mm, 1.3mm, 1.4mm, 15mm, 1.6mm, 1.7mm, 1.8mm, 1.9mm, 2.0mm. 10 pcs different size for meeting your needs.