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

The Dormer E003 M2.5 Spiral Flute Tap is designed for creating M2.5 metric coarse threads in blind holes, a very small thread size commonly required in precision engineering, electronics, instrumentation, and miniature mechanical assemblies. This precision tap is ideal for professional workshops handling delicate threading work and hobbyists working on detailed projects.

M2.5 threads are frequently specified in electronic enclosures, precision instruments, small control panels, optical equipment, and miniature mechanical components where space is extremely limited. The spiral flute design efficiently removes chips upward from blind holes, which is particularly important at small diameters where chip accumulation can quickly break delicate taps or damage fine threads. With 2 flutes and a 9.5mm threading length, this tap is optimised for micro-threading applications.

Manufactured from High Speed Steel Cobalt with steam tempering, this tap maintains the sharp cutting edges essential for producing accurate threads at small diameters. The coating helps retain cutting fluid, reducing friction and the risk of tap breakage during operation. The cylindrical shank with square drive provides secure mounting in precision tap wrenches for carefully controlled threading operations.

Features and Benefits:
• M2.5 thread size ideal for precision engineering and electronics
• 2-flute design optimised for small diameter applications
• 9.5mm threading length suitable for thin materials and shallow holes
• HSS-E cobalt construction for durability at small diameters
• Steam tempered finish enhances cutting performance and reduces friction

Specifications:
Diameter: M2.5
Type: Spiral Flute
Shank: Cylindrical shank with Square
Premachined hole diameter - millimeter (PHD): 2.05mm
Connection diameter - millimeter (DCON MS): 2.8mm
Threading length - millimeter (THL): 9.5mm
Basic standard group (BSG): ISO 529
Thread diameter size (TDZ): 2.5
Hand (Cutting direction): Right
Material code (BMC): High Speed Steel Cobalt
Thread form (THFT): M - Metric coarse
Flute count (NOF): 2
Alt Part Number (Material ID): 5974361
Material Application Priority Usage: P - Steel and cast steel
Package Dimensions: 11 x 81 x 9mm
Sellable Unit Weight: 5g
Package Quantity: 1
Hole Type: Blind Hole
Coating: Steam Tempered