1" x 1" Mount Block
Emcon mount blocks have C'Bored holes and location dowels. They come in steel or aluminium. Metric or Inch series.
Inch series have C'bores for 3/8" SHCS and dowel holes are 3/8"
Metric series have C'bores for M10 SHCS and dowel holes are 10mm
Used to keep holes in larger items on the same plane. Reduces machining operations and reducing cost.