Feature(may vary by option.)
●Premium M42 8% cobalt steel, 68-70 HRC (Rockwell hardness scale), which usually offers the best heat, wear and chip resistance as well as a long tool life.
●3-stage cut for cutting through stainless steel, carbide, aluminium, plastic.
●Despite the higher price, the cost per hole is the lowest when using cobalt drills as this drill can make so many more drills.
●The sufficiently sharp edge of the drill can cut the metal material into long strips of iron shavings, instead of grinding the material slowly with a blunt drill.
●Includes: M42 stainless steel drill bit 12 mm x 2 pieces (length: 15.1 cm) 135 degree pitch point.
[11 mm x 2 pieces]
[1-10 mm (19 pieces)]
[12 mm x 2 pieces]
[1.5-6.5 mm (13 pieces)]
Description
Stroton M42 8% cobalt drill bit sets (12 mm x 2 pieces) for stainless steel
Why choose STROTON cobalt drill?
Research shows that HSS with cobalt has higher temperature resistance and red hardness, greater wear resistance (hardness) and higher heat treatment response than HSS without cobalt.
Red hardness, it causes the hardened steel to have an ability to maintain the hardness at about 860-880 °C. Higher resistance to the occasion, i.e. Maintains a high hardness at high temperatures over a longer period of time. 68-70 HRC, which means that the drill bits have a 3X cutting capacity and 2X durability. This drill set is made of premium cobalt (70,000 euro per ton).
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M42 cobalt 8% alloyThis drill set is made of premium cobalt (70,000 euros per ton). Holds better than conventional high-speed steel, 8% cobalt gives the high-speed steel more heat and wear resistance. |
3 steps. Design (3X-5X drilling efficiency)3-step design tip starts drilling immediately with less force and eliminates "hiking" over the work surface. Ideal for stainless steel and carbide, hardwood, aluminium, copper, plastic and hardwood. |
Ideal for metal and hardwoodSuitable for drilling stainless steel, carbide, aluminium, copper, plastic and hardwood. The 3-stage design ensures accurate centring during woodworking that require precision drilling. The cobalt design also makes it even better to perform hardwood drilling. |
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The drill should be inserted vertically to the workpiece.Non-vertical use can lead to breakage of the drill. The use of a bench drill with sufficient power makes drilling easier. Do not use this drill on a hammer drill. This drill cannot be used for glass, walls and concrete. |
If you set the drill to a speed of 200-1000 RPM, you will drill stainless steel more easily.High speeds do not accelerate drilling efficiency, but increase the temperature between drill and workpiece very quickly, which can lead to softening and wear of the drill and hardening of the workpiece. Drill diameter ≤5 mm, RPM (1000~700)5-10 mm, RPM (700~350)10. 15mm, RPM (350 ~ 200) |
The use of cutting fluids can extend the life of the drill.Add stainless steel threaded oil or engine oil to prevent the stainless steel from overheating and forming a very hard oxide layer. If no cutting fluid is available, you can also add some vinegar, soy sauce or water. |
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| Metric M42 8% cobalt drill bits 1-10 mm/19 pieces | Metric M42 8% Cobalt Drill Bits Sets Small Single Packs | Metric M42 8% Cobalt Drill Bit Set (1mm-10mm/19pcs) Titanium Nitride Coating | Metric 6% Cobalt Step Drill (4-32mm/15 Steps) | |
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| Price | USD 50.37 | — | — | — |
| Measuring system | Metric | Metric | Metric | Metric |
| cobalt | M42 8% | M42 8% | M42 8% | M35 6% |
| Titanium coated | ✓ | |||
| Size: | 1-10 mm, 19 pieces | Small individual packs | 1-10 mm, 19 pieces | 4-32 mm/15 steps |
| Ideal for | Suitable for drilling stainless steel, carbide, aluminium, copper, plastic and hardwood | Suitable for drilling stainless steel, carbide, aluminium, copper, plastic and hardwood | Suitable for drilling stainless steel, carbide, aluminium, copper, plastic and hardwood | (sheet metal): stainless steel, iron sheet, aluminium, pipes, wood, PVC |
| Brand | STROTON | STROTON | STROTON | STROTON |
| Type | Right hand | Right hand | Right hand | Right hand |