Dormer E651 UNC Spiral Flute Tap & Drill Set – E65138

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. The 10mm connection diameter provides secure chuck engagement for confident operation, whilst the spiral flute geometry evacuates metal chips effectively. Whether you're a professional mechanic or a DIY enthusiast working on home projects, this tool eliminates the need to change between drill bits and taps. Features and Benefits: • Drill and tap combination completes threads in one efficient pass • Steam-tempered surface holds lubricant for improved cutting action • Spiral flute design ensures consistent chip evacuation • Compatible with standard hand-held power tools • High-speed steel construction for long-lasting durability • Through-hole capability for steel and cast steel materials Specifications: Diameter: 3/8 UNC Type: Sprial Flute Shank: Cylindrical shank with Square Connection diameter - millimeter (DCON MS): 10mm Threading length - millimeter (THL): 23mm Thread diameter - millimeter (TD): 8mm Basic standard group (BSG): DORMER DIN Material code (BMC): High Speed Steel Thread diameter size (TDZ): 3/8 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 origin: Brazil Sellable Unit Weight: 50.4g Alt Part Number (Material ID): 5978362 Brand: Dormer Package Dimensions: 15 x 115 x 14