Depth. Slot features are similar to rectangular pockets but have round ends equal in diameter to the width of the slot. Width. T-Slot Frezen; MateriaalTungsten Cobalt Alloy; Merknaamlavie. Chamfer. Bottom radius. Beschrijving. Width. Bottom radius. Beschrijving. LAVIE 1pcs 1/4" 6mm Shank T-Slot Cutter Router Bit Hex Bolt Keyhole Knife. . LAVIE 1pcs 1/4" 6mm Shank T-Slot Cutter Router Bit Hex Bolt Keyhole Knife. Depth. Chamfer. Length. T-Slot Frezen; MateriaalTungsten Cobalt Alloy; Merknaamlavie. Slot features are similar to rectangular pockets but have round ends equal in diameter to the width of the slot. Length.