Dormer E651 UNC Spiral Flute Tap & Drill Set – E65158

The 5/8 UNC spiral flute tap and drill set represents the largest capacity in this range, designed for heavy-duty threading applications. Creating a substantial 13.5mm thread diameter with 31mm threading length, this robust combination tool handles demanding structural metalwork, heavy machinery assembly and industrial fabrication where five-eighth inch UNC threads are specified. The single-operation design offers significant time savings on projects requiring multiple large-diameter threaded holes. Manufactured from high-speed steel with steam tempering, this substantial tool maintains cutting efficiency under the demands of larger-diameter threading. The 12.5mm connection diameter provides solid engagement with appropriate power tool chucks, whilst the two-flute spiral design evacuates metal chips effectively even at this larger scale. Professional fabricators and serious DIY metalworkers will value the productivity gains from eliminating separate drilling and tapping operations. Features and Benefits: • Combined drill-and-tap operation maximises efficiency on large threads • Steam-tempered surface retains lubricant for controlled cutting • Spiral flute design handles chip evacuation at larger diameters • Substantial construction suitable for heavy-duty applications • Power tool compatible for convenient on-site operation • Right-hand cutting for conventional threading work Specifications: Diameter: 5/8 UNC Type: Sprial Flute Shank: Cylindrical shank with Square Connection diameter - millimeter (DCON MS): 12.5mm Threading length - millimeter (THL): 31mm Thread diameter - millimeter (TD): 13.5mm Basic standard group (BSG): DORMER DIN Material code (BMC): High Speed Steel Thread diameter size (TDZ): 5/8 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 or