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BB Tools

BB Micro Drill (0.3mm~3.99mm) D=4mm

BB Micro Drill (0.3mm~3.99mm) D=4mm

通常価格 $14.00 USD
通常価格 $7.84 USD セール価格 $14.00 USD
セール 売り切れ
Hole Diameter
Name:BB Micro Drill                                  Material:Micro-grained carbde
Number of flutes:2                                     Series:BB2055
Diameter of shank:4mm                            Application:For general purpose
Cuting
diameter
Shank
diameter
(D)
Cuttlng
length
(L)
  Total
  length
  (OL)
Angle Tolerance
0.3~0.5 4 4 50 118° -0.005
0.51~0.99 4 6 50 118° -0.005
1.01~1.49 4 8 50 118° -0.005
1.51~1.99 4 10 50 118° -0.005
1.0  4 11 50 118° -0.005
1.1 
1.1 
1.2 
1.2 
1.25 4 12 50 118° -0.005
1.3
1.35
1.4
1.45
1.5
1.55
1.6
1.65
1.7
1.75
1.8
1.85
1.9
1.95
2.01~2.49 4 12 50 118° -0.005
1.95 4 15 50 118° -0.005
2
2.05
2.1
2.15
2.2
2.25
2.3
2.35
2.4
2.45
2.5
2.51~3.0 4 15 50 118° -0.005
3.01~3.49 4 18 50 118° -0.005
3.05 4 20 50 118° -0.005
3.1
3.15
3.2
3.25
3.3
3.35
3.4
3.45
3.5
3.3 6 20 62 118° -0.005
3.4
3.6
3.7
3.4 6 22 62 118° -0.005
3.5
3.51~3.99 4 20 50 118° -0.005
3.8 6 24 66 118° -0.005
3.9

BB Micro Drill - BB2055 (1PC)

-Solid Carbide for Ultimate Precision & Durability.
Designed for machine use only—not for handheld drills.

BB 微型钻头 - BB2055 (1支)

核心特点
整体硬质合金材质,具备极高硬度与耐磨性,专为精密、持久加工而设计。

-Application:
Steel, Stainless Steel, Cast Iron, Tool & Die Steel, PCB (Circuit Board), Acrylic, etc.

适用材料:
钢材、不锈钢、铸铁、模具钢、电路板、亚克力等。


-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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