Page 43 - HOLE MAKING CATALOG p185-310

Brazed Drilling Head USER GUIDE DEEP DRILLING - BTA SYSTEM

Single tube system – external thread:
DSD-E0 - Deep Single Tube Drills with External Single
Thread Connection and a Brazed Single Tip (8-14.8 dia.)
DSD-E1 - Deep Single Tube Drills with
External 2 and 4 Start Thread Connections
and a Single Brazed Tip (12.6-20 dia.)
DSD-E2/E3 - Deep Single Tube Drills with
External 2 and 4 Start Thread Connections
and 2 or 3 Brazed Tips (12.6-65 dia.)

Double tube system:
DDD-E3 - Deep Double Tube Drills with External 4 Start
Thread Connection and Brazed Tips (18.4-65 dia.)

Grade of Brazed Heads S D-E 3 25.28 DT - PZXT
D Drill Diameter
Chipbreaker
D Deep drilling / Brazed drill
Counter boring

I Inch - Deep drilling
/ Counter boring

S Special - Deep drilling
/ Counter boring

Grade

Brazed drill

S Single Tube FB Fixed pocket
D Double Tube (FNBM Type)

FT Fixed pocket
(FNTR Type)

D Drill

C Counterbore with
Through Hole

T Counterbore w/o
Through Hole

TR Trepanning

E External Thread
I Internal Thread

A Adjustable Insert

C Cartridge

F Fast Feed

0 Brazed, 1 tip, 1 thread
start (MBU type)

1 Brazed, 1 tip (UTE type)

2 Brazed, 2 tip (BTU type)

3 Brazed, 3 tip (BTU, ETU type)

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