Dormer E651 UNC Spiral Flute Tap & Drill Set – E651832

The No 8 UNC spiral flute tap and drill set provides versatile threading capability for smaller-scale engineering applications. Producing a 3.5mm thread diameter with 12mm threading length, this compact combination tool is perfect for electrical components, control equipment, light assemblies and general small metalwork where number eight UNC threads are required. The integrated drill-and-tap design streamlines workflow significantly, particularly valuable when working with multiple threaded fixings. Engineered from high-speed steel with a steam-tempered coating, this tool delivers reliable cutting performance across repeated use. The 4.5mm connection diameter provides secure chuck engagement, whilst the two-flute spiral geometry evacuates metal chips effectively throughout the threading operation. Whether you're a professional tradesperson or a home workshop user tackling smaller projects, this tool eliminates the need to change between drilling and tapping equipment for these commonly-used threads. Features and Benefits: • Single-pass threading saves considerable time on repetitive work • Steam-tempered finish retains cutting lubricant effectively • Two-flute spiral pattern ensures consistent chip removal • Cylindrical shank with square drive for power tool use • Right-hand cutting direction suits standard applications • Through-hole capability for steel and cast steel materials Specifications: Diameter: No 8 UNC Type: Sprial Flute Shank: Cylindrical shank with Square Connection diameter - millimeter (DCON MS): 4.5mm Threading length - millimeter (THL): 12mm Thread diameter - millimeter (TD): 3.5mm Basic standard group (BSG): DORMER DIN Material code (BMC): High Speed Steel Thread diameter size (TDZ): 8 Thread form (THFT): UNC - Unified Coarse Flute count (NOF): 2 Hand (Cutting direction): Right Hole Type: Through Hole Coating: Steam Tempered Material Application Priority Usage: P - Steel and cast steel Package Quantity: 1 Country of