Suburban Tool Precision Steel Cube 

6" x 3-1/2" x 3"

With 27, 1/4-20 Holes 

Model C-36

• Made in U.S.A.
• One-piece construction.
• Made of steel, case hardened .040-.060" deep.
• All holes tapped 1/4 - 20.
• Top and bottom plus 4 sides ground square and parallel within .0002".

• Solid, one-piece steel construction.
  
• Hardened to Rc 58-60.
  
• Top, bottom & four sides ground flat, square & parallel within 0.0002".
  
• Slotted on all sides for extra clamping possibilities.