Feature
●★ PRODUCT SPECIFICATIONS: This drill bit set comes in 13 sizes of 1.5, 2, 2.5, 3, 3.2, 3.5, 4, 4.5, 4.8, 5, 5.5, 6, 6.5 mm to accommodate a variety of tasks. The 13 sizes are easy to accommodate various situations
●★【High Quality Material】: Manufactured from M35 cobalt steel, with the addition of molybdenum and cobalt, the hardness of a Rockwell is up to 67, and it is extremely heat resistant. Up to 12 times longer than average HSS drill bits for a much faster cutting and an extremely long life
●★【For metal processing】: It is especially successful in cutting hard metals such as stainless steel and cast iron, but it can also be used for softer materials. Thin metal plates (steel and aluminum) and body panels (metal, fiberglass, plastic), low carbon steel, very effective in these projects. Not for use with hardened steel/high carbon steel
●Compatible models: Electric drills, rechargeable drill drivers, rechargeable drivers, drill machines, standard drill chucks and regular round collet chucks
●★【Quality assurance】: We are 100% reputable sellers. Safe after-sales service will protect your shopping. If you have any questions after purchasing or using the product, please contact us at any time. We are 24 hours online. Solve all problems
Description
Made of M35 high-speed steel, fully polished drill bits boast smooth surface, high grinding accuracy, sharp tool edges, and durable features. It can be widely applied to drilling high rigidity materials such as stainless steel, iron, aluminum, copper, wood, and plastic.
Note:
Do not drill a hole deeper than 1/2 of the groove length of the drill bit for best drilling performance. Technical Tips: Do not use M35 cabal bits on hardened steel, high carbon steel, and heat treated steel.
M35 Cobalt Drill Bit Set
Straight Shank Twist Drill
Cobalt Drill Bits are made of steel alloy containing 5% cobalt, not pure cobalt. 5% alloy is known as M35 grade.Cobalt drill bit is dull gold color, gold coating is corrosion resistant and increases the hardness of drill bits.They are made of high quality materials and cobalt drill bits tend to stay sharper longer than other types of bits.Cobalt drill bits are often used in very harsh conditions and need to be sharp.
Specifications:
Material: HSS M35 Cobalt 5% Flute Type: Spiral Shank Type: Straight Shank Size Includes: 1.5mm, 2mm, 2.5mm, 3mm, 3.2mm, 3.5mm, 4mm, 4.5mm, 4.8mm, 5mm, 5.5mm, 6mm, 6.5mm Length: 6cm-11.7cm / 2.36"-4.61" Weight: 250g Package Dimensions: 13.1" 5 x 8. 8 x 1.7 cm
|
|
|
|
|
|---|---|---|---|
|
The friction between the bit and the metal accumulates a certain amount of heat.During drilling, coolant must be used to cool the bit. Otherwise, the bit may be fried (melting) or a short time.You can use lubricant or pour water without any problem. |
Low RPM required for metal drilling. Use a device that can adjust the drill speed. Be careful when using an electric drill. RPM settings may be too high. The thicker the bit, the slower the speed. |
Keeps drill bits upright to the surface of the drillSloped bits tend to break during drilling.Keep both bits and work stable. |
Cobalt Drill Bits are suitable for standard drill chucks and traditional round chucks. |
