A 5 piece lockable impact adaptor set, combining a lockable universal joint design with step-up and step down drives. Specially designed to be able to lock in-line when required. Step-up adaptors: 1/4"D (F) to 3/8"D (M), 3/8"D (F) to 1/2"D (M), 1/2"D (F) to 3/4"D (M).
Step-down adaptors: 3/8"D (F) to 1/4"D (M), 1/2"D (F) to 3/8"D (M).

Features and Benefits
• Step-up adaptors: 1/4"D (F) to 3/8"D (M), 3/8"D (F) to 1/2"D (M), 1/2"D (F) to 3/4"D (M)
• Step-down adaptors: 3/8"D (F) to 1/4"D (M), 1/2"D (F) to 3/8"D (M)
• Full 360° rotation at angles up to 40° allows access to hard to reach spaces
• Specially designed to allow the U/J to be locked in-line when required
• Pinless construction for additional strength
• Manufactured from chrome molybdenum with black phosphate finish