AUTOMATIC DRILLS

Brand	Owner (click to sort)	Address	Description
"YANKEE"	Stanley Logistics	1000 Stanley Drive New Britain CT 06053	[ AUTOMATIC DRILLS, ] RATCHET SCREW DRIVERS, SPIRAL RATCHET SCREW DRIVERS, [ RECIPROCATING DRILLS, COUNTERSINKS, TOOL SETS COMPRISING SPIRAL RATCHET SCREW DRIVERS, RATCHET SCREW DRIVERS, CHUCK AND DRILL ATTACHMENTS, AND COUNTERSINKS; NUT SOCKETS, ] BIT EXTENSIONS, [ SAWS, AND WRENCHES ];
"YANKEE"	NORTH BRO'S MFG. CO.	AMERICAN STREET AND LEHIGH AVENUE PHILADELPHIA PA	[ AUTOMATIC DRILLS, ] RATCHET SCREW DRIVERS, SPIRAL RATCHET SCREW DRIVERS, [ RECIPROCATING DRILLS, COUNTERSINKS, TOOL SETS COMPRISING SPIRAL RATCHET SCREW DRIVERS, RATCHET SCREW DRIVERS, CHUCK AND DRILL ATTACHMENTS, AND COUNTERSINKS; NUT SOCKETS, ] BIT EXTENSIONS, [ SAWS, AND WRENCHES ];
	Where the owner name is not linked, that owner no longer owns the brand

Technical Examples

A drilling apparatus comprises a casing shoe, ring bit, and center bit. The casing shoe may be connected to a casing received within the casing shoe. The ring bit is received within the casing shoe and retained at the end of the casing. The ring bit rotates relative to the casing shoe, and drills a peripheral portion of a hole. The center bit drills a central portion of the hole, and may be rotated and percussively driven to drill the hole. The center and ring bits are adapted for: engaging one another so that rotating and percussively driving the center bit also rotates and percussively drives the ring bit; engaging one another so that retracting the center bit also retracts the ring bit, casing shoe, and casing; enabling disengagement from one another and withdrawal of the center bit from the ring bit and the casing shoe.