Dormer E003 HSS-E High Perf Mult-App Metric Coarse Spiral Flute Tap

The Dormer E003 M20 Spiral Flute Tap is engineered for creating M20 metric coarse threads in blind holes, representing a substantial thread size used in heavy machinery, large press tools, and major industrial fabrications. This professional-grade tap is essential for workshops handling heavy engineering, maintenance, and manufacturing operations. M20 threads provide exceptional load-bearing capacity and are frequently specified in large machine bases, heavy-duty lifting equipment, industrial gearbox housings, and structural steel assemblies where significant forces must be accommodated. The spiral flute design is critical at this thread size, efficiently evacuating the considerable chip volume produced during cutting to prevent dangerous chip packing in blind holes. With 4 flutes and a 29mm threading length, this tap handles most M20 applications. Manufactured from High Speed Steel Cobalt with steam tempering, this tap maintains sharp cutting edges when working through steel and cast steel materials. The coating improves cutting fluid retention, reducing friction and heat build-up during the demanding process of cutting large threads. The cylindrical shank with square drive provides secure mounting in tap wrenches or machine holders. Features and Benefits: • M20 thread size for heavy-duty industrial and structural applications • 4-flute design for efficient cutting performance in large diameter threads • 29mm threading length suitable for standard M20 fixing depths • HSS-E cobalt construction ensures durability in demanding operations • Steam tempered finish enhances lubrication and reduces tool wear Specifications: Diameter: M20 Type: Spiral Flute Shank: Cylindrical shank with Square Premachined hole diameter - millimeter (PHD): 17.5mm Connection diameter - millimeter (DCON MS): 14mm Threading length - millimeter (THL): 29mm Basic standard group (BSG): ISO 529 Thread diameter size (TDZ): 20 Hand (Cutting direction): Right Material code (BMC): High Speed Steel Cobalt Thread form (THFT): M - Metric coarse Flute count (NOF): 4 Alt Part Number (Material ID): 5974366 Material Application Priority Usage: P - Steel and cast steel Package Dimensions: 22 x 115 x 22mm Sellable Unit Weight: 137g Package Quantity: 1 Hole Type: Blind Hole Coating: Steam Tempered