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SELECTION GUIDE

Deep Hole Drilling Index

Single Tube System Double Tube System

Single Tube System (STS) – Double Tube System (DTS) -
Cooling fluid is induced through the gap between Cooling fluid is induced between the coaxial
the drill and the hole. Conveying the chips through tubes, conveying the chips through the inner tube
the tube requires the use of dedicated machines. and can be applied on standard machines. DEEP DRILLING - BTA SYSTEM

Deep Drilling Heads Identification System

I S D - E C XXX.XX XX XX
Hole Diameter

I - Insert
A - Adjustable Insert Chipbreaker
C - Cartridge (letters)
F - Fast Feed -or- Insert
0 - Brazed, 1 tip, 1 thread start Chamfer Angle
1 - Brazed, 1 tip (for boring)
2 - Brazed, 2 tips (numbers)
3 - Brazed, 3 tips

E - External Thread
I - Internal Thread Only for Brazed Heads

D - Drill P - Steel
C - Counterbore with Through Hole M - Stainless
T - Counterbore without Through Hole
TR - Trepanning K - Cast Iron
N - Aluminum

S - Single Tube
D - Double Tube
Grade

D - Deep Drilling/Counterbore
I - Inch Deep Drilling/Counterbore
S - Special Deep Drilling/Counterbore 0 - Uncoated
1 - TiAlN Coating
Z - TiCrAlN Coating

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