This professional-grade 114-piece set features high-quality carbon tool steel taps and dies for precision threading. The patented Twist Lock guide system and 5° ratcheting arc allow for efficient work in tight spaces with minimal hand movement.

• Comprehensive 114-piece set includes 48 taps and 48 dies covering 4-40 to 3/4 and 3 to 18 mm sizes.
• Patented Twist Lock guide system reduces die guide back walk for increased precision.
• 5° ratcheting arc with a reversible lever eliminates the need for repetitive hand-over-hand turning.
• Versatile die adapter is compatible with both round and hex-shaped dies.
• Extension adapters provide easy access to threading in tight, confined areas.
• Auto-locking feature ensures safe and secure removal of the tap adapter.
• Organized storage in a durable blow-molded case for professional machine shops and mechanics.