Durable hand thread tapping set made from high quality bearing steel for long service life - Contents: 1 piece T shaped tap, 4 taps, and 4 twist drill bits - Ergonomic design: T shaped wrench enables one handed operation for easier control and reduced fatigue - Performance: Improves efficiency of thread processing and is a necessary tool for hand thread cutting - Material and construction: Bearing steel construction built for durability in metalworking tasks - Practical use: suitable for creating or repairing tapped holes in steel, aluminum, and other metals Use scenarios - Repair and fabricate threaded holes in metal plates or brackets during maintenance or DIY projects - Install threaded holes or prepare new components for bicycles, motorcycles, or automotive work - General workshop tasks that require reliable hand thread cutting and hole tapping Notes - Does not specify sizes or compatibility beyond the described components - Use with corresponding taps and drill bits for standard threading applications