BB Micro Drill Solid Carbide Bit Mini CNC Aluminum Hole Making External Cooling 3xD Shank Diameter 4mm D4 BF2055 0.3~2.02mm

BB Mirco Drill-BB2055(1PCS)

-The whole bit is made of Solid Carbide, which makes the bit more durable. But it also makes it easier to break, so it's forbidden to use electric hand drills and unstable machining environments.

Edge polishing Blade Grinding and Polishing Process

Edge polishing enhances the finish of the cutting edge, making the tool both aesthetically pleasing and sharp, resulting in higher finish quality of the workpiece

High-Quality Ultra-Fine Particles Carbide Material

Brand new fine-grained tungsten steel base material, high hardness and wear resistance

Large Core DiameterDesign

Significantly enhances the stability and shock resistance of the cutting tool, greatly reducing the chance of tool breakage

Passivation Process Free of Burrs Longer Lifespan

The passivation equipment enhances the corrosion resistance and wear resistance of the cutting tools, and precision grinding ensures a burr-free edge, allowing for smooth cutting and extending the tool’s lifespan

Spiral Groove Design Smooth Chip Evacuation

Reduces burrs, and the polished groove facilitates chip removal

Universal Smoothness Chamfered Round Handle

Easy to use, strong compatibility, stable clamping, and enhanced tool shock resistance

Applicable Machining Methods

Sharp machining, high finish quality of the workpiece

Wide Range of Applicable Materials：
Aluminum Parts, Copper Parts, Etc.
Applicable Equipment：CNC Milling Machines, Machining Centers, CNC Engraving Machines

-Application：
Steel, stainless steel, cast iron, die steel, circuit board,acrylic and so on.

-Diameter of shank :4mm

Recommended Cutting Conditions

*Reference parameters are used as the general standard and need to be adjusted according to the Drilling environment.
*When abnormal noise occurs to the workpiece and equipment, please check the situation and change the parameters.
*When the highest speed does not reach the reference standard, please use the highest speed of your equipment for machining, but note that the feed speed also needs to be adjusted proportionally.
*Please fully provide cutting cooling water to the machining position and drilling edge.
*Table parameters are applicable to machining depth smaller than 3xDc. If the depth is greater than 3xDc, reduce the speed by 20%.
*According to the material and depth, select the grading machining method, please return to the top of the hole when grading feed. The grading amount is about 0.2 ~ 1Dc, when the diameter is less than 1mm, 0.1~0.2Dc.
*The beat of the drill bit should be less than 0.02mm.

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