
Head-changeable drill for drilling large holes
Unique clamping concept and two effective cutting edges on the drill head provide excellent hole quality and high productivity

Applications & Features
Applications
Features
1. Two effective cutting edges
• The drill head with two effective cutting edges provides high productivity and reliability.
2. Unique clamping system
• The drill head change is possible without removing the drill body from the tool holder or the spindle, eliminating re-adjustments.
• Asymmetric shaped drill head not only secures stability in heavy machining but also error-proofs drill head installation.
• The drill body has a wide supporting area for the drill head for rigid insert clamping.
Inserts & Grades
Inserts
SMP (ø20 – ø41 mm)
- General purpose type
SMF (ø20 – ø41 mm)
- Provides greater resistance to radial forces, improving machining stability during the drilling of irregular surfaces or workpieces with low rigidity
- Coated with wear resistant PVD grade, AH9130
Grades
AH725
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P15 – P30 / M15 – M30 / K25 – K30 / S15 – S25
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Good balance between wear and chipping resistance
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Suitable for machining steel and stainless steel under general cutting conditions
AH9130
- P15 – P35 / M25 – M35 / K10 – K25 / S15 – S30
- High wear resistance
- Designed for drilling various materials
Drill bodies
Practical examples
Example #1
General Engineering
Part: | Gate valve |
Material: | SUS304 / X5CrNi18-9 |
Drill: | TIS300F40-5 |
Head: | SMP300 |
Grade: | AH725 |
Cutting conditions: | Vc = 60 (m/min) f = 0.25 (mm/rev) Vf = 160 (mm/min) H = 120 (mm) Machine: Horizontal M/C |

Example #2
Heavy Industry
Part: | Slewing ring |
Material: | SCM440 / 42CrMo4 |
Drill: | TIS330F40-5 |
Head: | SMP331 |
Grade: | AH725 |
Cutting conditions: | Vc = 100 (m/min) f = 0.4 (mm/rev) Vf = 380 (mm/min) H = 150 (mm) Machine: Vertical M/C |

Standard cutting conditions
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