Depth. Slot features are similar to rectangular pockets but have round ends equal in diameter to the width of the slot. Depth. T-Slot Frezen; MateriaalTungsten Cobalt Alloy; Merknaamlavie. Bottom radius. Chamfer. Length. Chamfer. Beschrijving. Length. T-Slot Frezen; MateriaalTungsten Cobalt Alloy; Merknaamlavie. Width. Bottom radius. Beschrijving. Width. . 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. Slot features are similar to rectangular pockets but have round ends equal in diameter to the width of the slot.