30mm x 5mm HSS T Slot Cutter 8 Flute Blade Woodruff Cutting Alloy

I did this by drilling a hole at one end of the slot, the hacksaw cutting into this hole at each side I then tidied up the result with a file

Cobalt drill bits are required for drilling thick steel and metal Other drill bit materials simply cannot bore through them as successfully as

slot king 569 Set of 6 Titanium Coated High Speed ​​Steel Twist Drill Bits 3-8mm Serrated Slot Cutting Woodworking Side Cut Tap Spiral Saw Drill Bit Woodworking Wood Metal

slot via dana You can use carbide slot drill to drill plasterboards, wood or aluminum planks, or to fix taps We offer you quality bits to provide you with optimal drilling