Dormer E651 UNC Spiral Flute Tap & Drill Set

The 3/8 UNC spiral flute tap and drill set offers versatile threading capability for mid-range diameter applications. Creating an 8mm thread diameter with 23mm threading length, this combination tool is ideal for automotive work, machinery maintenance and general fabrication where three-eighth inch UNC threads are specified. The single-pass operation dramatically reduces production time compared to traditional separate drilling and tapping methods. Engineered from high-speed steel with a steam-tempered finish, this tool maintains its cutting performance across extended use.