Volkel Machine Taps DIN 371 HSS-E Spiral Flute - UNC/UNF

Genuine VÖLKEL machine taps to DIN 371, HSS-E, Form C with a 35° spiral flute for cutting internal UNC and UNF threads on CNC and manual milling/drilling machines. The spiral flute pulls chips up and out of the hole, making these ideal for blind holes. Stocked by San Tools in the UAE in 5/16" and 3/8" sizes.

Features

• DIN 371 Standard — machine tap geometry for use in tapping heads, collet chucks and rigid tapping setups
• HSS-E (Cobalt) Construction — improved heat resistance and edge life over standard HSS, suited to steel and stainless
• Form C, 35° Spiral Flute — pulls chips upward and out of the hole, ideal for blind-hole tapping
• UNC and UNF Thread Forms — covers both coarse and fine imperial thread series
• Size Range — UNC 5/16 x 18, UNF 5/16 x 24 and UNF 3/8 x 24
• Machine Tap Shank — designed for power tapping on CNC mills, machining centres and tapping arms

How to Use

• Drill the Correct Tap Drill Size — use the correct pilot hole diameter for the UNC/UNF thread you're cutting
• Use a Tapping Head or Rigid Tapping Cycle — set feed to match the thread pitch exactly for rigid tapping
• Run at the Recommended Speed — reduce speed for blind holes and harder materials
• Flood or Mist Coolant — lubricate to extend tap life and improve thread finish
• Retract Fully on Blind Holes — allow the spiral flute to clear chips fully before backing out

Specifications

Type: Machine Tap (Form C, Spiral Flute)
Standard: DIN 371
Thread Form: UNC / UNF
Material: HSS-E (Cobalt High-Speed Steel)
Flute: 35° Spiral
Size Range: 5/16" – 3/8"
Brand: VÖLKEL (Germany)
Origin: Imported, distributed by San Tools UAE