Specifications: 

• Size: 0.15mm - 2.5mm
• Shank Diameter: 3.175mm(1/8")
• Material: Carbide
• Features: efficient opening, strong wear resistance, not easy to chip
• Note: Colors are shipped randomly
• The drill bit has a large chip removal space: small chip removal resistance, smooth chip removal, low drilling heat, and reduced drilling pollution.
• Sharp cutting edges: Thanks to nanotechnology and advanced grinding techniques, the drill edge is sharper than before, reducing cutting forces, reducing drill breakage and improving hole wall quality.
• Use: Ideal for 3D printer nozzle cleaning, precision drilling of amber beeswax, circuit boards, bakelites,jewelry, metal plastics, etc.