Model: JY‑8019 Low-Power Version Chuck Clamping Range: 1.5‑10 mm Overall Dimensions: Total Length 165 mm, Total Height 200 mm Net Weight (without battery): 0.83 kg Battery Specifications: 21V MAX 2.2Ah lithium-ion battery H-Speed: Approx. 1,800 RPM; high speed, low torque, and high efficiency—suitable for tapping or reaming small threads, but not recommended for large threads or hard materials Controls: Power switch, smart adjustment button
Model: JY‑8020 Medium-Power Version Chuck Clamping Range: 1.5–13 mm Overall Dimensions: Total Length 165 mm, Total Height 200 mm Net Weight (without battery): 1.1 kg Battery Specifications: 21V MAX 2.2Ah lithium-ion battery H-Mode Speed: Approx. 1,600 RPM; high speed, low torque, and high efficiency—suitable for tapping and reaming small threads, but not for large threads or hard materials Controls: Power switch, smart adjustment button
Model: JY‑8021 High-Power Version Chuck Gripping Range: 1.5‑13 mm Unit Dimensions: Total Length 200 mm, Total Height 200 mm Net Weight (without battery): 1.3 kg Battery Specifications: 21V MAX 2.2Ah lithium-ion battery H-Speed: Approx. 1,500 RPM; high speed, low torque, and high efficiency—suitable for tapping and reaming small threads, but not for large threads or hard materials Controls: Power switch, smart adjustment button
Model: Two-Speed Tapping Model (no model number indicated) Chuck Gripping Range: 1.5–13 mm Unit Dimensions: Total Length 190 mm, Total Height 200 mm Net Weight (without battery): 1.26 kg Battery Specifications: 21V MAX 2.2Ah lithium-ion battery H-Mode Speed: Approx. 1,500 RPM; high speed, low torque, and high efficiency—suitable for tapping/reaming small threads, but not suitable for large threads or hard materials L-Mode Speed: Approx. 300 RPM; low speed, high torque—suitable for reaming M16–M18–M20 threads (requires installation of a specialized tap chuck) Controls: Power switch, smart adjustment button