1. 

   martin sykes 2000 New Member

   Hi
   Hope this is not a daft question?
   I want to drill six square holes in 15mm mdf
   Could I say drill half inch holes with a drill bit then using a Mortice drill bit just the square part and tap it with a hammer to leave a square hole.
   Martin

    

   martin sykes 2000, Apr 27, 2024

   #1
2. 

   chillimonster Screwfix Select

   there's a "square " chisel by Trend which should
   help you .

    

   chillimonster, Apr 27, 2024

   #2
3. 

   Mark DM Screwfix Select

   Could also just square it up with a conventional wood chisel

    

   Mark DM, Apr 27, 2024

   #3
4. 

   Alan22 Screwfix Select

   If you have a pillar drill for the mortice bit then yes, but you would be as well to clamp a strip of wood on as a straight edge and just run a row of mortice holes.

    

   Alan22, Apr 27, 2024

   #4

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