{{ name }}
Article no. {{ combinedCodeWithHighlight }}
Article code:
EAN / GTIN:
Manufacturer number:
Cat. Nr.:
The GARANT HB70 turning grade: simply bites through steel.
More powerful. More efficient. More precise. – The GARANT grade families for ISO turning of steel
They come into their own when it comes to processing general steel materials: the GARANT HB70 indexable insert family sets new standards for precision, performance and process reliability. With innovative geometries and state-of-the-art coatings, they glide through tough materials like water – uncompromising, efficient and durable. Whether you’re working on general structural steels or tool steels:these teeth know no mercy.
Aggressive, strong and assertive
- Dominant and uncompromising – like a shark in open waters
- Maximum machining performance due to aggressive material removal
Robust and durable
- Protective layer as armour: High wear resistance and long service life
- Reliable and stable even under difficult conditions (e.g. with heavily interrupted cuts)
Precision in perfection
- Clear lines – like the perfect contours of a shark
- Precise shape for maximum dimensional accuracy, precision and control
Dynamism, efficiency and speed
- Customised chip breakers for high feed rates and speeds
- Highest productivity without any loss of quality
Three new high-performance grades from the 2nd generation
The HB70 grade family was specially developed for efficient steel machining – with finely tuned grades for different machining and cutting conditions. Thanks to a fine-grained substrate with carefully selected substrate properties and a robust CVD coating made of TiCN and Al₂O₃, the HB70 series offers an exceptional combination of wear resistance, edge sharpness and toughness for all steel applications. Whether for continuous machining with high temperature resistance (HB7010-2), general-purpose applications with a balanced characteristics profile (HB7020-2) or heavily interrupted cutting with maximum process reliability (HB7035-2) – the family delivers precise performance where it is needed.
GARANT HB7010-2
- Focus: Grade for high-performance machining
- For continuous cutting conditions
- For stable machining conditions
- For high cutting speeds
GARANT HB7020-2
- Focus: Grade for universal machining
- For continuous and slightly interrupted cutting conditions
- Optimised in terms of wear resistance at moderate/medium-high cutting speeds
- The new first choice for turning steels
GARANT HB7035-2
- Focus: Grade for increased process reliability
- For heavily interrupted cutting conditions
- For unstable machining conditions
- For low cutting speeds
Negative inserts 0°
Positive inserts 5°/7°
SM chip breaker for steel processing
Maximum process reliability, excellent chip evacuation and impressive tool life – for medium to coarse machining of all common steel materials. The cutting-force-optimised design promotes short and controlled chips. Chip jams, temperature rises and tool wear are thus minimised.
SM chip breakers
- Universal chip breaker for medium machining
- Large chip evacuation area
- Reduced temperature rise on the rake face
- Stable 6° chamfering with a length of 0.20 mm
- 22° rake
Advantages:
- Good chip breakage for reliable machining without chip entanglement
- Longer service life due to reduced thermal and mechanical stress
- Clean surface thanks to controlled chip evacuation
- General-purpose use in many standard turning operations
Type: CNMG120408-SM
Article number: 250158 HB7020-2
Material: 1.7131 (16MnCr5)
Cutting speed: 220 m/min
HB7020-2 in use – practical experience and results
The new all-round grade for machining general steels sets standards for versatility and process reliability – even with changing machining conditions. Whether it’s continuous or slightly interrupted cuts, moderate or high cutting speeds, the grade impresses with its consistently reliable performance. Even the most diverse materials are no obstacle. Extensive practical tests on various types of machine are a testament to the outstanding adaptability and performance of this new generation.
Cutting conditions: Continuous, wet 8%, 40 bar
Material: 1.7131 16MnCr5
Indexable insert: CNMG120408 SM
Material number: 250158 HB7020-2
Cutting data: vc: 200 m/min | f: 0.35 mm | ap: 3.5 mm
Working life of the cutter:
HB7020 SM: 20 minutes
HB7020-2 SM: 300 minutes → +1400% working life
Cutting conditions: Continuous, wet 8%, 20 bar
Material: 1.1191 C45+QT
Indexable insert: CNMG120408 SM
Material number: 250158 HB7020-2
Cutting data: vc: 170 m/min | f: 0.28 mm | ap: 2.0 mm
Working life of the cutter:
HB7020 SM: 157 minutes
HB7020-2 SM: 225 minutes → +43% working life
Cutting conditions: Continuous, wet 8%, 10 bar
Material: 1.7225 42CrMo4
Indexable insert: CNMG120408 SM
Material number: 250158 HB7020-2
Cutting data: vc: 190 m/min | f: 0.30 mm | ap: 3.5 mm
Working life of the cutter:
HB7020 SM: 15 minutes
HB7020-2 SM: 46 minutes → +200%working life
Brochure
GARANT HB70 &
GARANT HB71
The GARANT grade families for ISO turning of steel and stainless steels