Accuromm Central Europe

A tool engineering company that supports all work related to tools

Machining in a wide range of materials, from cast iron to steel!

“Low resistance thinning” + “special helical flute shape”
ensures high cutting capacity, even for cast iron and steel!

Lower thrust due to low resistance thinning

High chip evacuation with special helical flute shape

Improved wear resistance with multilayer coating

What is TFS drill series?

① TFS drill

for general hole machining in steel

Features: High chip evacuation with low cutting resistance and helical flutes

  • cross thinning
  • single margin
  • multilayer coating
  • IT9 grade hole diameter accuracy

② TFS Drill Type C

for general hole machining in cast iron

Features: Specialized cutting edge suitable for cast iron machining

  • low thrust thinning
  • double margin
  • multilayer coating
  • improved tool life compared to conventional drills in cast iron machining
  • IT9 grade hole diameter accuracy

Amazing facts!

── Introducing ideas and technologies ──

The TFS drill uses straight cutting edges and double cross-thinning to ensure cutting edge strength and low thrust.
The drill also has a high chip evacuation performance due to a flute design that takes chip evacuation into consideration.
The TFS drill Type C uses low-thrust thinning and double margins suitable for cast iron machining to achieve stable machining accuracy.
Both drills feature a dedicated multi-layer coating as standard to improve wear resistance.

TFS drill:
Reduced cutting resistance (thrust)

Good!

[Processing conditions]
JIS S50C / EN C50E / DIN CK50 / WNr 1.1213
Dc = ø10mm, Vc = 100 m/min f = 0.25 mm/rev

TFS Drill Type C:
Reduced cutting resistance (thrust)

Good!

[Processing conditions]
JIS FCD600 / EN-GJS-600-3 / DIN GGG60 / WNr 0.7060
Dc = ø10 mm, Vc = 100 m/min, f = 0.3~0.5 mm/rev

TFS Drill Type C lifetime improvement effect

Good!

[Processing conditions]
JIS FCD450 / EN-GJS-450-10 / DIN GGG40
Dc = ø11mm, Vc = 100m/min, f = 0.3mm/rev

This is the point!

Specialized for each workpiece material

Excellent!

TFS drill for steel

Excellent chip evacuation performance with special wide chip pockets

TFS drill Type C for cast iron

Stable machining accuracy achieved by double margin

Development / product concept

“Current status and challenges”

  • In the machining of cast iron and steel, thrust resistance was high and chip evacuation was poor, so efficiency could not be increased without sacraficing accuracy. In addition, cutting heat was high, which reduced the service life of the tool.

“Development points”

  • The TFS drill has a wide flute pocket shape to ensure high chip evacuation and a cutting edge shape suitable for machining steel to achieve low resistance
  • The TFS drill type C has a special thinning geometry specially designed for cast iron machining to reduce thrust. The double margin specification suppresses vibration during cutting and enables high-precision hole drilling, while the use of a multi-layer coating significantly improves service life.

Product specification

Tool name

TFS drill

Target process

General hole machining in steel

Setting diameter

ø4 ~ ø20 mm

Standard conditions

Cutting speed: Vc = 50~120 m/min

Feed: f = 0.01~0.05D mm/rev

Machining accuracy

Hole diameter: IT9 grade

Tool name

TFS Drill type C

Target process

General hole machining in cast iron

Setting diameter

ø4 ~ ø20 mm

Standard conditions

Cutting speed: Vc = 50~120 m/min

Feed: f = 0.01~0.05D mm/rev

Machining accuracy

Hole diameter: IT9 grade

Differential case and knuckle