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Drills bits with EXTRA bite. Viper Plus is an industrial quality drill bit designed for machine and hand held drilling in stainless steel, steel, aluminium, cast iron, brass, wood and plastic. Featuring a Futura Nano PVD coated tip ? the latest generation coating for ultimate wear resistance and increased productivity. This drill bit has been independently tested to exceed 2X tool life compared to standard Viper drill bits.
| ISO | VDI | Description | Condition | Hardness | Strength | Optimal |
|---|---|---|---|---|---|---|
| P | 1 | Steel - Non-alloy, cast & free cutting (~ 0.15 %C) | Annealed | 125MPa | 440MPa | |
| P | 2 | Steel - Non-alloy, cast & free cutting (~ 0.45 %C) | Annealed | 190MPa | 640MPa | |
| P | 3 | Steel - Non-alloy, cast & free cutting (~ 0.45 %C) | Quenched & Tempered | 250MPa | 840MPa | |
| P | 4 | Steel - Non-alloy, cast & free cutting (~ 0.75 %C) | Annealed | 270MPa | 910MPa | |
| P | 5 | Steel - Non-alloy, cast & free cutting (~ 0.75 %C) | Quenched & Tempered | 300MPa | 1010MPa | |
| P | 6 | Steel - Low alloy & cast < 5% of alloying elements | Annealed | 180MPa | 610MPa | |
| P | 7 | Steel - Low alloy & cast < 5% of alloying elements | Quenched & Tempered | 275MPa | 930MPa | |
| P | 8 | Steel - Low alloy & cast < 5% of alloying elements | Quenched & Tempered | 300MPa | 1010MPa | |
| P | 9 | Steel - Low alloy & cast < 5% of alloying elements | Quenched & Tempered | 350MPa | 1180MPa | |
| P | 10 | Steel - High alloy, cast & tool | Annealed | 200MPa | 680MPa | |
| P | 11 | Steel - High alloy, cast & tool | Hardened & Tempered | 325MPa | 1100MPa | |
| P | 12 | Steel - Corrosion resistant & cast - Ferritic / Martensitic | Annealed | 200MPa | 680MPa | |
| P | 13 | Steel - Corrosion resistant & cast - Martensitic | Quenched & Tempered | 240MPa | 810MPa | |
| M | 14.1 | Stainless Steel - Austenitic | Age Hardened | 180MPa | 610MPa | |
| M | 14.2 | Stainless Steel - Duplex | 250MPa | 840MPa | ||
| M | 14.3 | Stainless Steel - Precipitation Hardening | 250MPa | 840MPa | ||
| K | 15 | Cast Iron, Grey (GG) - Ferritic / Pearlitic | 180MPa | 610MPa | ||
| K | 16 | Cast Iron, Grey (GG) - Pearlitic | 260MPa | 880MPa | ||
| K | 17 | Cast Iron, Nodular (GGG) - Ferritic | 160MPa | 570MPa | ||
| K | 18 | Cast Iron, Nodular (GGG) - Pearlitic | 250MPa | 840MPa | ||
| K | 19 | Cast Iron, Malleable - Ferritic | 130MPa | 460MPa | ||
| K | 20 | Cast Iron, Malleable - Pearlitic | 230MPa | 780MPa | ||
| N | 21 | Aluminum & Magnesium, wrought alloy - Non Heat Treatable | 60HB | 210MPa | ||
| N | 22 | Aluminum & Magnesium, wrought alloy - Heat Treatable | Age Hardened | 100HB | 360MPa | |
| N | 23 | Aluminum & Magnesium, cast alloy ?12% Si - Non Heat Treatable | 75MPa | 270MPa | ||
| N | 24 | Aluminum & Magnesium, cast alloy ?12% Si - Heat Treatable | Age Hardened | 90MPa | 320MPa | |
| N | 25 | Aluminum & Magnesium, cast alloy >12% Si - Non Heat Treatable | 130MPa | 460MPa | ||
| N | 26 | Copper & Copper alloys (Brass/Bronze) - Free cutting, Pb > 1% | 110MPa | 390MPa | ||
| N | 27 | Copper & Copper alloys (Brass/Bronze) - Brass (CuZn, CuSnZn) | 90MPa | 320MPa | ||
| N | 28 | Copper & Copper alloys (Brass/Bronze) - Bronze (CuSn) | 100MPa | 360MPa | ||
| N | 29 | Non-metallic - Thermosetting & fiber-reinforced plastics | ||||
| N | 30 | Non-metallic - Hard rubber, wood etc. | ||||
| S | 31 | High temperature alloys - Fe based | Annealed | 200HB | 680MPa | |
| S | 32 | High temperature alloys - Fe based | Age Hardened | 280HB | 950MPa | |
| S | 33 | High temperature alloys - Ni / Co based | Annealed | 250HB | 840MPa | |
| S | 34 | High temperature alloys - Ni / Co based | Age Hardened | 350HB | 1180MPa | |
| S | 35 | High temperature alloys - Ni / Co based | Cast | 320HB | 1080MPa | |
| S | 36 | Titanium & Titanium alloys - CP Titanium | 400MPa | |||
| S | 37.1 | Titanium & Titanium alloys - Alpha alloys | 860MPa | |||
| S | 37.2 | Titanium & Titanium alloys - Alpha / Beta alloys | Annealed | 960MPa | ||
| S | 37.3 | Titanium & Titanium alloys - Alpha / Beta alloys | Age Hardened | 1170MPa | ||
| S | 37.4 | Titanium & Titanium alloys - Beta alloys | Annealed | 830MPa | ||
| S | 37.5 | Titanium & Titanium alloys - Beta alloys | Age Hardened | 1400MPa | ||
| H | 38.1 | Hardened steel | Hardened & Tempered | 45HRC | ||
| H | 38.2 | Hardened steel | Hardened & Tempered | 55HRC | ||
| H | 39.1 | Hardened steel | Hardened & Tempered | 58HRC | ||
| H | 39.2 | Hardened steel | Hardened & Tempered | 62HRC | ||
| H | 40 | Cast Iron - Chilled | Cast | 400MPa | 1350MPa | |
| H | 41 | Cast Iron | Hardened & Tempered | 55HRC |
