Full-Carbide Guide Pad
ø16 ~ 24.99
ø18.40 ~ 65
ø25 ~ 65
ø25 ~ 71
Quick insert change
No regrinding needed
Faster and Easier Deep Hole Drilling!
Rigid all-in-one shaft
Enables deep hole drilling on your M/C
Easy-to-use compact body
Please contact us for more details.
3 corner insert, low running cost
The world's smallest drill with 3 corner insert!
Positive chipbreaker allows very high feed drilling
*Guide pad is spare part of UNITAC indexable tools
3 corner insert, low running cost
Evolutionary New Direct Mount Tool!
Improved straightness with new design
Diameter available from ø25 to 65mm
UNITAC New Products
BTA deep drilling know-how available on
Longer tool life with the latest carbide
grade and coating
Finely ground cylindrical geometry for
better hole quality
Burnishing effect by guide pads for super
Straightness improved by 75%!
Highly accurate hole achieved by precisely produced insert
Highly accurate hole achieved by
precisely produced insert
Drilling ø220X2600mm, achieved high
productivity and high accuracy in one pass
Low alloyed steel
Drilling Depth: 2600mm
Drilling ø12.6X500mm, reduced machining
time signiﬁcantly from 4.5 min. to 2 min. per
workpiece with STS (BTA) drilling which
replaced gundrilling. Also better hole
accuracy was achieved.
Drilling Depth: 500mm
Achieved high productivity and high accuracy
(coaxiality 0.02mm and circularity 0.02mm)
reaming ø62.5 x 735mm with CBN insert.
Process was reduced from two to only one
Drilling Depth: 735mm
High productivity and high accuracy were
achieved in drilling ø18X930mm with STS
(BTA) drilling replacing gundrilling. Drilling
time was reduced to one third of gundrilling.
Drilling Depth: 930mm
Trepanning of ø120 x 4000mm required only
63% of the power compared to solid drilling
of the same size hole achieving high
productivity and high accuracy.
Drilling Depth: 4000mm
High productivity, long tool life and good
chip evacuation were achieved in super
stainless steel drilling of ø31X800mm with
the best combination of carbide grade and
Super stainless steel
Drilling Depth: 800mm
Double Tube Connector
(No need of Seal)
Oil Pressure Head
STS (Single Tube System)
deep hole drilling process.
A large volume of coolant is pumped under high pressure to the
cutting area in the workpiece. Chips are then forced out through
the drill tube at the back and they do not touch workpiece
allowing super surface ﬁnish.
STS is a very good method to obtain holes of high productivity and
high accuracy by using a dedicated drilling machine and a sealing
with the workpiece.
DTS (Double Tube System)
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 lathes or
In general, because of less eﬃcient chip evacuation than the STS
the recommended max drilling depth is 1000mm. However,
Unitac has a coolant inducer (the DTC-R) that is capable of
supplying high pressure coolant and can successfully achieve
drilling depths of up to 2000mm.
lathes without the need for coolant inducers or dedicated deep
hole drilling machine. Drilling depths of up to 15 times the
diameter of the hole can be achieved with the HF drill. Holes can
be drilled in one seamless pass in faster and higher feed
conditions compared to traditional drilling. Also deep holes can be
drilled in one set-up without moving workpiece.
Dia. ø25 ~ 71(mm)
L/D ~ 15
Dia. ø18.40 ~ 183.99(mm)
L/D 10 ~100
Dia. ø8 ~ (mm)
L/D 10 ~ 300
Deep hole tooling Manufacturer
3-7-57 MIYANOJIN KURUME FUKUOKA 839-0801
TEL +81-942-33-4159 FAX +81-942-27-9940
3-23-21 MINAMIMUKONOSO AMAGASAKI 661-0033
TEL +81-6-6432-8403 FAX +81-6-6432-4091
E-mail : email@example.com
Tool specifications are subject to change without notice for the purpose of improvement of the products.