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NTK Cutting Tools

Mogul bars

For ID boring operations｜ Swiss CNC lathes

Solves common issues associated with ID boring operations
Home / Boring & Shaping / Mogul bars

Highly rigid bars and inserts that direct chips away from the part

Unique boring bar design greatly improves rigidity combined with chipbreakers that control the direction of the chip evacuation during the boring operation.
Features
  • Holder designed to ensure rigidity and eliminate vibrations
  • F1, F05, FG chipbreakers developed for blind hole applications to direct chips backward and out of the hole to prevent chip packing
  • Coolant through boring bars to support chip evacuation
Tooling application
Swiss CNC lathes ID boring operations
Chipbreaker control range
Toolholder overhang
[ Cutting conditions ]
Material : Alloy steel・Stainless steel  vc = 80m/min  f=0.05-0.1mm/rev  ap=0.1-0.5mm 260 SFM .002 – .004 IPR .004 – .020 DOC   WET
Evacuates chips Backwards
F style chipbreakers direct chips backward and out of the hole
* Use a right-handed style insert with a right-handed boring bar
Features of FG / F05 / F1 chipbreakers
[ Cutting conditions ]
Material : SCM415  part diameter ⌀12  Machining depth 20mm  vc = 80m/min part diameter ⌀.472” 260 SFM Depth of Bore : .787”   WET(External coolant)

[ Tools used ]
Holder : Steel shank S10KSTUPR11D12-OH
Insert : TPGH110304 Type TPGH221
*When using FG, F1, F05 chipbreakers – use a right-handed insert with a right-handed boring bar.
Chip control
[ Cutting conditions ]
Material : SCM435  vc = 80m/min  f = 0.05mm/rev  ap = 0.25mm  part diameter : ⌀10  External coolant  Toolholder overhang amount : L/D = 4  Machining depth : 20mm 270 SFM .002 IPR .010 DOC part diameter:⌀.39” External coolant  Toolholder overhang amount : L/D = 4  Machining depth : .79”

[ Tools used ]
Holder : S08H-STUPR09D10-OH type   (minimum bore diameter of ⌀10)  Shank diameter : ⌀8 (minimum bore diameter of ⌀.39”) Shank diameter : ⌀.315”
Insert : TPGH090204 Type
Lineup

S-MBR-OH Mogul Bar / coolant through / Steel shank

C06-MBR-OH Mogul Bar

C045-MBR-OH Mogul Bar

C045-MBR Carbide shank

C-MSBR Carbide shank for ID Back Turning

S-SEXR-OH Mogul Bar

C05-SEXR-OH Mogul Bar

C06-SEXR-OH Mogul Bar

S-SCLP-OH Mogul Bar

C-SCLP-OH Mogul Bar

C-SCLP-N Carbide shank tool holder

S-SCLC-OH Mogul Bar

C-SCLC-OH Mogul Bar

S-STUP-OH Mogul Bar

C-STUP-OH Mogul Bar

C-STUP-N Carbide shank toolholder

C-STZP-OH Mogul Bar

B-STZP-N Carbide shank

S-STUC-OH Mogul Bar

C-STUC-OH Mogul Bar

C-STUC-N Carbide shank

C-STZC-OH Mogul Bar

B-STZC-N Carbide shank

S-BG Mogul Bar / Steel shank

BG Steel shank type toolholder

TGC type toolholder / Carbide shank

HN Steel shank type toolholder

Boring bar adaptor

- - - Scroll the table - - -
ISO Work material Grade Overhang amount vc (m/min) (SFM) ap (mm) (inch) f (mm/rev) (IPR)

Carbon steel
Alloy steel
Hardened material
ID boring operations
ID boring Back turning		 QM3 Steel shank ～5D
Carbide shank ～7D		 50 – 150 160 – 500 0.1 – 1.0 .004 – .040 0.02 – 0.2 .0008 – .008
Difficult-to-cut material
ID boring operations
ID boring Back turning		 DM4
DT4		 30 – 70 100 – 230
Stainless
ID boring operations
ID boring Back turning		 ST4 40 – 120 130 – 400
Titanium alloy
High temp alloys
ID boring operations
ID boring Back turning		 DM4
DT4		 30 – 70 100 – 230
Non-ferrous
Aluminum
Plastic
General purpose
ID boring operations
ID boring Back turning		 TM4
ZM3		 50 – 200 160 – 660
Valve parts
Material :
SUS304 304SS
Cutting speed :
80 m/min 270 SFM
Feed :
0.05 mm/rev .002 IPR
DOC :
0.2 ～ 0.5 mm .008 ～ .020 inch
Holder :
S08H-STUPR09D10-OH
Insert :
TPGH090202RFG
Mogul bars＋TM4
FGbreaker
1,500 pcs
Competitor’s product
700 pcs

Competitor’s tool life was not stable due to chip packing.
NTK’s mogul bar and insert with FG chipbreaker evacuated the chip from the hole resulting in a 2.1 x increase in tool life.

Sleeve
Material :
SUM43
Cutting speed :
75 m/min 250 SFM
Feed :
0.05 mm/rev .002 IPR
DOC :
0.1 mm .0039 inch
Holder :
C06H-SCLPR04D07-OH
Insert :
CPGH04102FRF1
Mogul bars＋TM4
F1breaker
900 pcs
Conventional tool
500 pcs

The competitor’s boring bar experienced a heavy amount of vibration due to extended overhang.
NTK’s boring bar eliminated vibration issues and insert with F1 chipbreaker achieved 1.8 x more tool life.

View reports
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For more information about this product, visit our online e-catalog, or download the catalog/product report

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