counterbore Definition

countersink, countersink bit, chamfer, allen screw, wood screw, machine screw, snaphead, center punch, electric drill, drawbore, cap screw, triblet, screw, mandrel, needle valve, flange, hand drill, phillips screw, pritchel, reamer, chamfret, power drill, hold together, drill, trepanner, shank, scrobiculate, terebrate, box wrench, syphering, setbolt, maundril, snipebill, castle nut, mortise joint, dowel, cotter pin, drill press, semicylinder, workpiece, thirl, gouge out, rabbet, swage, terebrant, screwdriver, bitstock, spindleshanks, allen wrench, cramp iron, tire iron, bolt, adjustable wrench, whitworth gun, taper, knighthead, spindle, hole, nozzle, diestock, collet, semiannular, fastener, bickern, ferrule, shaft, knurl, diameter, socket wrench, epicycloidal wheel, bevel, cutter, danaide, phillips screwdriver, mortise, fillister, tailpin, bevile, lisne, dogbolt, semidiameter, annular, septifragal, reclination, hole out, drivebolt, bevelment, annulary, rivet, concave, biserrate, traphole, wrench, torque wrench, serrature, capsquare, ratchet wheel, pertuse, tampoon, serration,