Twist micro-drill with back chamfer
The twist micro-drill for rear flaring is a combined drill that allows, after drilling, to deburr / flare the lower part of the hole through a simple interpolation.
The TA303B micro drill starts from the diameter 0.5 mm up to 3.0 mm diameter with 0.1 mm intervals and is in stock with TiAlN coating.
![](https://tusa-precision.ch/web/wp-content/uploads/2019/02/TA303B_top-1024x560.jpg)
![](https://tusa-precision.ch/web/wp-content/uploads/2019/04/TA303B-utilizzo-768x598.png)
We always recommend to follow the drilling method and the indicative parameters for drilling with TUSA TOP DRILL.
Naturally, customized versions with different diameters and lengths are also available on request.