How To Make An Elongated Countersunk Hole?

How To Make An Elongated Countersunk Hole? countersunk slot Countersunk Slot Machine Screw, x 50mm, Bright Zinc Plated · Used with switch and socket boxes · Countersunk slot type to DIN 963 6000 slot Home · Fasteners and Fixings · Stainless Steel Fasteners · A2 Stainless Steel Countersunk Slot Machine Screw A2 Stainless Steel Countersunk Slot Machine

6000 slot Head type: Countersunk ; Thread: M6 ; Overall length: 12 mm ; Driver type: Slot

sonic 3 air extra slot metal sonic Item Name: Countersunk Slot Plug · Manufacturer: PASCO · Material: Brass · Type: Cleanout  Machine Screws Olympic Countersunk Slot Bright zinc plated Product Code, Diameter, Length mm, Unit Qty, Quantity 213-364-010, M6, 16, 100