10pcs Set 2 1 3 1mm PCB Drill Bits CNC Mill Tool Set Woodworking Engraving

10pcs/set 2.1~3.1mm PCB Drill Bits CNC Mill Tool Set Woodworking Engraving Cutter For Power Tools Carbide Micro PCB Drill Bits

Brand Name: JLI

Model Number: PCB2130

DIY Supplies: Electrical

length: 36-38mm

Type: Twist Drill Bit

Material: Tungsten Steel

Use: Metal Drilling

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Shank diameter: approx 3.175mm

Material: Tungsten steel

Package content : 10pcs drill  (2.1/2.2/2.3/2.4/2.5/2.6/2.7/2.8/2.9/3.1mm)   

Note:

1.small drill thin, easy to break, gently, the operation should be standardized.

2. The color of colorful positioning ring is random.