
Head changeable reamer
High precision and productivity solution for finishing hole operations
Applications & Features
Applications
Features
1. High precision reamer heads for applications of H7 hole-tolerance range
2. Allows applications of higher cutting speeds and feed rates over solid carbide or brazed reamers, ensuring high productivity
3. 2 types of reamer heads are available depending on the hole types
Inserts & Grades
Inserts
HRM-BL (Ø11.5 – Ø32 mm)
- Reaming heads with left hand flute for through holes
HRM-AS (Ø11.5 – Ø32 mm)
- Reaming heads with straight flute for blind holes
Grades
AH725
- P15 – P30 / M15 – M30 / K25 – K30 / S15 – S25
- Good balance between wear and chipping resistance
- Suitable for machining steel and stainless steel under general cutting conditions
Reamer Bodies
Practical examples
Example #1
Automotive Industry
Part: | Flange yoke |
Material: | FCD500 / GGG50 / 450-10S |
Drill: | TRM-T9-R32-5 |
Insert: | HRM-27.000-BL-T9 |
Grade: | AH725 |
Cutting conditions: | Vc = 100 (m/min) f = 1.2 (mm/rev) Vf = 1415 (mm/min) H = 20 (mm) Coolant: Internal Machine: Horizontal M/C |

Example #2
Automotive Industry
Part: | Flange yoke |
Material: | S45C / C45 |
Drill: | TRM-T9-R32-5 |
Insert: | HRM-27.000-BL-T9 |
Grade: | AH725 |
Cutting conditions: | Vc = 90 (m/min) f = 0.8 (mm/rev) Vf = 850 (mm/min) H = 15 (mm) Coolant: Internal Machine: Horizontal M/C |

Standard cutting conditions
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