I shoulda known better than to trust hardware store drill bits.......

[Nickathome]

I should've known better. I needed a #21 drill bit to drill the rivet holes in my spar. So, I bought one at the local hardware store. The bit is too small. None of the holes are the proper diameter. I measured the bit and a rivet with my calipers. Both were .1520. A #21 bit should be .1590, per info listed on my drill size chart. Last time I trust hardware store drill bits.

 

[user 4289]

 

[JamesG]

 

[Blue Chips]

 

[ekimneirbo]

 

[JamesG]

 

[TFF]

 

[Head in the clouds]

 

[Matt G.]

 

[kent Ashton]

 

[TFF]

 

[Blue Chips]

 

[BBerson]

 

[JamesG]

 

[JamesG]

 

[Blue Chips]

 

[Matt G.]

 

[Nickathome]

 

[Head in the clouds]

 

[cvairwerks]