internal and external screw Threads SAE 10 - 24

Extracts screws in Combination, Zyl and Metal Frames if a screw is corroded and broken off in the barrel or the slot and the head is worn Screw Slotting File

Use appropriately shaped files to square the slot and re-contour the screw head If you're careful, you can come pretty darn close to duplicating the

screwdriver slot Swiss made slotting screw head file cut 4 Length 75mm Width 9mm Thickness

screw slot file For screw heads and fine grooving; Files have only the very edge as a cutting surface; Made from chrome steel, hardness 65HRc +-2; Certified ISO 9001