STS (Single Tube System) Solid drilling tools

STS Brazed Solid Drill Heads

Outer Thread(TYPE STS-EX) Dia.
Dc(mm)
Rework Tolerance Surface roughness
Ra
Feature/Use  
MBU STS MBU 8.00 - 14.79 NA IT9 2μm Higher productivity and better surface finish than gundrill.
Good chip breaking with 3 step cutting edge design.
watch specification
UTE STS UTE 12.60 - 20.00 RT IT9 2μm Higher productivity and better surface finish than gundrill.
Good chip breaking with 3 step cutting edge design.
First recommendation for dia. ø12.60 - 15.59.
watch specification
BTU STS BTU 12.60 - 65.00 RT IT9 2μm First recommendation for dia. ø15.60 or more.
Good chip breaking with 3 cutting edges.
(ø12.60 - 15.59mm has 2 cutting edges)
Covers all materials with various carbide grade combinations.
watch specification
Inner Thread(TYPE STS-IN) Dia.
Dc(mm)
Rework Tolerance Surface roughness
Ra
Feature/Use  
TU STS TU 14.51 - 65.00 RG IT9 2μm Delivered with standard chip-breaker. watch specification

Rework symbol chart

Symbol Service Detail
RT Retipping service Carbide tips and pads replaced, drill ground to size
RG Regrinding service Regrinding of tip edge and guide pads
NA NOT AVAILABLE Not available

Indexable Drill Head

Outer Thread(TYPE STS-EX) Dia.
Dc(mm)
Tolerance Surface roughness
Ra
Feature/Use  
UNIREV 16.01 - 28.50 IT9 - 10 2μm Indexable drill head for small diameter.
Good chip breaking with 3 step cutting edge design.
watch specification
UNIDEX 38.00 - 500.00 IT9 - 10 3μm Worldwide best selling indexable drill head.
Multiple options to cover various cutting condition.
Drill diameter can be enlarged up to 5mm with plus (+) spare parts depending on outer cartridge size.
watch specification

Spare Parts

instruction
Inner Thread(TYPE STS-IN) Dia.
Dc(mm)
Tolerance Surface roughness
Ra
Feature/Use  
UNIREV 16.01 - 28.50 IT9 - 10 2μm Indexable drill head for small diameter.
Good chip breaking with 3 step cutting edge design.
watch specification
UNIDEX 38.00 - 500.00 IT9 - 10 3μm Worldwide best selling indexable drill head.
Multiple options to cover various cutting condition.
Drill diameter can be enlarged up to 5mm with plus (+) spare parts depending on outer cartridge size.
watch specification

Spare Parts

instruction

Direct Mount Drill Head

Outer Thread(TYPE STS-EX) Dia.
Dc(mm)
Tolerance Surface roughness
Ra
Feature/Use  
0124 drill head 30.00 - 65.00 IT9 - IT11 2μm No diameter setting necessary.
High productivity reduces cost.
Tool steel body increases tool life.
watch specification
Inner Thread(TYPE STS-IN) Dia.
Dc(mm)
Tolerance Surface roughness
Ra
Feature/Use  
0124 drill head 30.00 - 65.00 IT9 - IT11 2μm No diameter setting necessary.
High productivity reduces cost.
Tool steel body increases tool life.
watch specification