Are you interested in making your own circuit boards? This Electronics Bundle set has what you need! It includes the most useful carbide end mills for milling circuit boards and a 25-pack of both single and double-sided FR-1 circuit board blanks. 

The 4"x 5" bundle contains:

• 1/32” Flat End Mill (2)
  
• 1/64” Flat End Mill (2)
• PCB Engraving Bit, 0.005" (2)
• Printed Circuit Board Blank, FR-1, 4”x5”, Single-Sided (25-pack)
• Printed Circuit Board Blank, FR-1, 4”x5”, Double-Sided (25-pack)