S Type Blades
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For 3-3/4" to 6-1/4" Diameter Holes. Can be used on low horsepower portable magnetic or fixed machine drilling. Effective in steel up to 1/2" thick (up to 1" if cut from both sides). The S-Type blade is held with a special spring loaded set screw, producing a floating action which adjusts to uneven work surfaces or small misalignments between spindle and workpiece. If the depth of cut is greater than 1/2", advance pilotde holder through the pilot hole and insert blade in an upward orientation. Reverse spindle and feed in upward cutting direction to maximum blade depth. Removeable blade, withdraw piloted holder and reinsert blade in a downward cutting position with right hand rotation and complete the cut to break through.