Dormer E651 UNC Spiral Flute Tap & Drill Set

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 origin: Brazil
Sellable Unit Weight: 9.1g
Alt Part Number (Material ID): 5978380
Brand: Dormer
Package Dimensions: 11 x 83 x 10mm