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TinyMiniTurnMulti

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Solid carbide boring bar for small-diameter drilling and turning

Boosts productivity for small part machining

Applications & Features

Applications

DrillingInternal turningExternal turning

Features

Multifunctional solid carbide boring bar for small-diameter drilling and various turning processes

Optimized design provides maximum tool stiffness during machining

Application ranges of multifunctional drilling and turning tool series

Enables multiple tool combinations and productivity boosts for small part machining

  • A single tool for multiple applications
  • Allows tool combinations while increasing the number of open slots in the turret or tool posts in your CNC lathes and Swiss machines
  • Able to form a flat hole bottom

Solid Carbide Boring Bars & Grades

Solid Carbide Boring Bars

TBMFR07

  • Solid carbide boring bar for drilling and turning
Grades

SH725

  • P20 – P30 / M20 – M30
  • High wear resistance
  • Designed for machining steel and stainless steel

Sleeves

TinyMiniTurnMulti Sleeves

Sleeve for internal coolant supply with 4 coolant holes

Practical examples

Example #1
Workpiece Type: Joint
Workpiece Material: SUS316 / X5CrNiMo17-12-3
Toolholder: JBBS19-7-L100C-4N
Insert: TBMFR0718003-D060
Grade: SH725
Cutting conditions: Vc = 30 (m/min)
f = 0.04 (mm/rev)
Machining: Drilling
Coolant: Internal
Example #2
Workpiece Type: Machine part
Workpiece Material: S45C / C45
Toolholder: JBBS254-7-L100C-4N
Insert: TBMFR0718003-D060
Grade: SH725
Cutting conditions: Vc = 70 (m/min)
f = 0.02 (mm/rev)
ap = 0.8 (mm)
Machining: Internal turning
Coolant: Internal
Example #3
Workpiece Type: Spacer
Workpiece Material: SUS304 / X5CrNi18-9
Toolholder: JBBS19-7-L100C-4N
Insert: TBMFR0712001-D060
Grade: SH725
Cutting conditions: Vc = Drilling: 30, Turning : 40 (m/min)
f = Drilling: 0.015, Turning : 0.03 (mm/rev)
ap = Turning : 0.5 (mm)
Machining: Drilling, facing and internal turning
Coolant: Internal

Standard cutting conditions

ISO Workpiece material Grade Cutting speed Vc (m/min)
Drilling Turning
Low carbon steels
S15C, S25C, etc.
C15E, C15E4, etc.		 SH725 20 – 100 40 – 140
Carbon steels, Alloy steels
S55C, SCM440, etc.
C55, 42CrMo4, etc.		 SH725 20 – 100 40 – 140
Prehardened steels
NAK80, PX5, etc.		 SH725 20 – 100 40 – 140
Stainless steels
SUS304, SUS316, etc.
X5CrNi18-9, X5CrNiMo17-12-3, etc.		 SH725 20 – 60 40 – 140
Grey cast irons
FC250, FCD300, etc.
GG25, 250, GG30, 300, etc.		 SH725 30 – 100 30 – 100
Ductile cast irons
FC450, FCD600, etc.
GGG60, 600-3, etc.		 SH725 30 – 100 30 – 100
Aluminium alloys, Copper alloys
Si < 12%		 SH725 50 – 200 90 – 200
Titanium alloys
Ti-6AI-4V, etc.		 SH725 20 – 50 30 – 100
Superalloys
Inconel718, etc.		 SH725 20 – 50 30 – 100
L/D=2
Application range Minimum bore diameter: DMIN (mm)
ø3 ø4 ø5 ø6 ø7
Depth of cut
ap (mm)		 Feed
f (mm/rev)		 Depth of cut
ap (mm)		 Feed
f (mm/rev)		 Depth of cut
ap (mm)		 Feed
f (mm/rev)		 Depth of cut
ap (mm)		 Feed
f (mm/rev)		 Depth of cut
ap (mm)		 Feed
f (mm/rev)
Internal and
external turning		 0.2 – 1.5 0.01 – 0.08 0.2 – 2 0.01 – 0.08 0.2 – 2.5 0.01 – 0.08 0.2 – 3 0.01 – 0.08 0.3 – 3.5 0.01 – 0.08
Face turning 0.02 – 0.2 0.01 – 0.06 0.02 – 0.4 0.01 – 0.06 0.2 – 0.65 0.01 – 0.06 0.2 – 0.65 0.01 – 0.06 0.25 – 0.7 0.01 – 0.07
Drilling – 0.01 – 0.06 – 0.01 – 0.06 – 0.01 – 0.08 – 0.01 – 0.08 – 0.01 – 0.1
L/D=3
Application range Minimum bore diameter: DMIN (mm)
ø3 ø4 ø5 ø6 ø7
Depth of cut
ap (mm)		 Feed
f (mm/rev)		 Depth of cut
ap (mm)		 Feed
f (mm/rev)		 Depth of cut
ap (mm)		 Feed
f (mm/rev)		 Depth of cut
ap (mm)		 Feed
f (mm/rev)		 Depth of cut
ap (mm)		 Feed
f (mm/rev)
Internal and
external turning		 – – 0.2 – 2 0.01 – 0.07 0.2 – 2.5 0.01 – 0.07 0.2 – 3 0.01 – 0.07 – –
Face turning – – 0.02 – 0.4 0.01 – 0.04 0.2 – 0.65 0.01 – 0.04 0.2 – 0.65 0.01 – 0.04 – –
Drilling – – – 0.01 – 0.05 – 0.01 – 0.06 – 0.01 – 0.06 – –

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

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