Features:

• For drilling components lead wire holes in printed circuit boards
• Suitable for drilling aluminum, fiberglass, circuit board, wood and most plastic including acrylic
• Ideal for model engineering, electronics and jewelry making, etc

Specification:

• Cutting Edge Diameter: Approx. 3.5 mm
• Cutting Edge Length: Approx. 7 mm
• Shank Diameter: Approx. 3.1 mm
• Overall Length: Approx. 38 mm
• Tungsten steel blade, welded iron body