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