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TFH Drill

Towards a new realm of high-efficiency aluminium machining!

Highly efficient machining of aluminium alloys with ‘low-resistance thinning’ + ‘double margin’
  • High feed rate of drill diameter × 15% (mm/rev) due to low-resistance thinning
  • Stable machining accuracy with double margins
  • DLC coating improves resistance to welding
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“Amazing Ideas / Facts!”

The TFH drill realises low thrust and stable machining accuracy due to its special thinning and double margins, which enable the high feed rates equivalent to 15% of the drill diameter.

Reduction of cutting resistance (thrust)

Allowance of Diameter expansion

POINT! Low resistance and stable machining accuracy

Background / Point for Development

Background

  • High efficiency and reduced cutting resistance are essential in drilling operations to reduce investment cost for equipments and the machinery down-sizing.
    Conventional twisted drills usually have higher thrust and poorer chip evacuation, making it difficult to reduce overall machining time.


Point for Development

  • The TFH drill features a newly developed thinning shape for low thrust and a special flute shape for improved chip evacuation, enabling high feed rate of drill diameter × 15% (mm/rev).
  • The double margin ensures stable machining accuracy and contributes to improved productivity in a wide range of applications.

Product Specification

Tool Specification

Process
covered		Aluminum general hole (w/o preholes)
Diameterø4mm –
Standard conditions
  • Cutting speed: V=50 – 150m/min
  • Cutting feed: f=0.05D – 0.15Dmm/rev
PerformanceAccuracy: IT9
Surface roughness: Rz25
Machining hole depth: L/D≤5
Positional tolerance: ø0.6

Example of applicable work