Deep hole dr illing he ad series

Single Tube System (STS) and Double Tube System (DTS)

Single Tube System (STS)

Single tube system

The STS is also referred to as the BTA system

in the deep hole drilling process. A largeGuideOil
volume of coolant is pumped under highWorkpieceDrillbushpressure
materialDrilltubeSealingheadChip
pressure to the cutting area in the workpiece.
headBar restbox

Chips are then forced out through the drill tube at the back and do not touch the workpiece providing an outstanding surface finish. STS is a stable method to create holes with high

accuracy by using a dedicated drilling machine

and a sealing with the workpiece.

Double Tube System (DTS)

The DTS is characterized by its two tube

construction and is therefore known as

the double tube system. A sealing system

and pressure head, which is required in the

Single Tube System (STS), is not necessary

for the DTS and it is therefore suitable for

conventional general purpose machines such

as CNC lathes or machining centers.

Double tube system

Double tube Workpiece Guide

DrillOuter tubeconnectorChip
materialbush
headInner tubebox

No need for sealing