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