Feature(may vary by option.)
●Cocobalt drill bits are suitable for soft metals such as stainless steel, mild steel, cast iron, engineering steel, hard metal, copper, aluminum, etc
●Metal drill bits with 5% cobalt element improve hardness, high temperature resistance, durability and performance better than conventional drill bits Note that it does not apply with glass and ceramics
●The 135% spiral double-edged cutting sharp corners do not linger on the surface and work quickly without additional positioning
●Metric drill bits 1.5mm 2mm 2.5mm 3mm 3.2mm 3.5mm 4mm 4.5mm 4.8mm 5mm 5.5mm 6mm 6.5mm A total of 13 round straight steel drills of different diameters, suitable for home handicraft scenes and professional work Small sizes require attention to speed and temperature
●Compact storage box Easy to carry and store drill bits Box size identification for easy selection and storage
[1.0mm 10pcs]
[13pices]
[1.0mm-10mm 19pcs]
[1mm-13mm 25pcs]
Description
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| 1.5mm-6.5mm | 1mm-10mm | 1mm-13mm | |
| Customer Reviews | 100
| 100
| 100
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| Price | $11.99 | $27.58 | $57.99 |
| Shank | Round | Round | Round |
| Size | 1.5 ,2 ,2.5,3,3.2,3.5,4,4.5,4.8,5,6,6.5, | 1,1.5,2,2.5,3,3.5,4,4.5,5,5.5,6,6.5,7，7.5,8,8.5,9,9.5,10 | 1,1.5,2,2.5,3,3.5,4,4.5,5,5.5,6,6.5,7，7.5,8,8.5,9,9.5,10，10.5,11,11.5,12,12.5,13 |
| Manufacturing Technique | Precision Ground | Precision Ground | Precision Ground |
| Compatible Materials | Stainless steel, hard metal, cast iron, copper, plastic, wood | Stainless steel, hard metal, cast iron, copper, plastic, wood | Stainless steel, hard metal, cast iron, copper, plastic, wood |
135°Cutting tip angle Cylindrical drill handle
The cutting tip angle is 135° This is the best angle for cobalt twist drills, which work easily when forward force is appli
Cylindrical drill shanks have higher center accuracy and is suitable for three-jaw grippers for a variety of tools
best hard metal metric drill bits
The addition of 5% cobalt makes M35 cobalt drill bits, suitable for metal, cast iron, copper and aluminum
On the basis of not exceeding the working length, it can effectively pass through all kinds of metals
His abilities are not limited to thin objects, thick metal can too
Detailed dimensions of torsion bar drill bits
Contains different sizes
It can be selected according to needs
The 1.5mm-6.5mm metric drill meets the needs of routine home operation, and high-quality products are also suitable for professional work operation
Dimension-coded storage boxes for easy sorting
Example of how to use it
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Examples of incorrect usageThe drill bit does not work on the diagonal side of a hard object, which will cause it to slip and break in severe cases |
Examples of correct usageThe torsion bar drill bit should be perpendicular to the item and provide the right forward pressure |
Ways to improve efficiency and longevityAdding cooling water to help cool the drill bit when in use can improve efficiency and extend service life |
