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A drilling of an ultra-precise hole is a tough job for any mechanist. It is must to understand the behavior of material, surface regularities or irregularities and geometry of drill point, in order to do accurate holes. Our offered spotting drill can be used to make accurate holes, without drill walking. Precision drilling can be achieved with Spotting Drill Bits. It is important to mark the spot first and create a small divot. This is done to know the correct center of drill to start a plunge. Get your hands on this tool to get your drilling job done.
We can customize the size and flute length as your request
|Spotting Drill Size Chart|
|Cutting Diameter Ø (mm)||Cutting Length L (mm)||Point Angle°||Cutting Diameter Ø (mm)||Cutting Length L (mm)||Point Angle°|
|0.020 ~ 0.050||2 Ø||90°||0.60 ~ 0.70||1.5 Ø||90°|
|0.050 ~ 0.080||2 Ø||90°||0.70 ~ 0.80||1.5 Ø||90°|
|0.080 ~ 0.100||2 Ø||90°||0.80 ~ 0.90||1.5 Ø||90°|
|0.100 ~ 0.150||1.5 Ø||90°||0.90 ~ 1.00||1.5 Ø||90°|
|0.150 ~ 0.200||1.5 Ø||90°||1.00 ~ 1.10||1.5 Ø||90°|
|0.20 ~ 0.30||1.5 Ø||90°||1.10 ~ 1.20||1.5 Ø||90°|
|0.30 ~ 0.40||1.5 Ø||90°||1.20 ~ 1.30||1.5 Ø||90°|
|0.40 ~ 0.50||1.5 Ø||90°||1.30 ~ 1.40||1.5 Ø||90°|
|0.50 ~ 0.60||1.5 Ø||90°||1.40 ~ 3.15||1.5 Ø||90°|
* Cutting Length L (mm) = 2Ø (2 Times Cutting Diameter), 1.5Ø (1.5 Times Cutting Diameter).
* 0.020~0.050 Spotting Drill is Single Cutter. Provide each 1 um (0.001 mm) a specification.
* Customize our Spotting Drill’s cutter length (L1), neck length (L2), neck diameter(Ø2) and point angle (θ) for your request.
Spotting Drill 0.02 x 0.04 L
Spotting Drill 0.3 x 0.45 L