
Multifunctional counterboring tool with enriched tool diameter line up
Enriched tool diameter lineup for various hole making operations
Applications & Features
Applications
Features
1. Wide variety of tools for various counterboring operations
2. 2 types of endmills available
• Mono-block type: ø10 — ø43mm

• Cartridge type: ø26 — ø59mm, Diameter adjustable with shims

3. Provides a 90° flat surface

4. Multi-functionality

Inserts & Grades
Inserts
Grades
AH6225
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- P20 — P30 / M20 — M30
- First choice for stainless steel
- Excellent versatility for stainless steel machining, demonstrates a good combination of wear and fracture resistance
T313W
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Cutter bodies
Practical examples
Example #1
Automotive Industry
| Part: | Con-rods |
| Material: | S55C / C55 |
| Drill: | TCB170F25 |
| Insert: | SPMP831DS |
| Grade: | T313W |
| Cutting conditions: | Vc = 160 (m/min) f = 0.2 (mm/rev) Vf = 600 (mm/min) H = 24 (mm) Application: Boring Coolant: Wet Machine: Dedicated machine |

Example #2
General Engineering
| Part: | Valve |
| Material: | FC250 / GG25 / 250 |
| Drill: | TCB240F25 |
| Insert: | SPMP042ERD |
| Grade: | T313W |
| Cutting conditions: | Vc= 180 (m/min) f= 0.3 (mm/rev) Vf= 720 (mm/min) H= 30 (mm) Application: Boring Coolant: Wet Machine: Horizontal M/C, BT50 |

Example #3
General Engineering
| Part: | Bearing |
| Material: | S45C / C45 |
| Drill: | TCB-320 |
| Insert: | SPMM322ERD |
| Grade: | T313W |
| Cutting conditions: | Vc= 150 (m/min) f= 0.25 (mm/rev) Vf= 375 (mm/min) H= 40 (mm) Application: Boring Coolant: Wet Machine: NC lathe |

Standard cutting conditions
Counter boring
| ISO | Workpiece material | Hardness | Cutting speed Vc (m/min) |
Feed : f (mm/rev) | |
|---|---|---|---|---|---|
| ø10 — 12 (z = 1) | ø13 — 59 (z = 2) | ||||
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Carbon steel | — 300 HB | 80 — 200 | 0.03 — 0.08 | 0.1 — 0.3 |
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Stainless steel | — 200 HB | 80 — 150 | 0.03 — 0.05 | 0.06 — 0.15 |
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Grey cast iron | 150 — 250 HB | 80 — 200 | 0.05 — 0.1 | 0.1 — 0.4 |
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Non-ferrous | — | 100 — 300 | 0.05 — 0.2 | 0.1 — 0.4 |
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Superalloys | — 40 HRC | 50 — 80 | 0.03 — 0.05 | 0.06 — 0.15 |
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Hard materials | — 50 HRC | 50 — 80 | 0.03 — 0.05 | 0.06 — 0.15 |
Milling
| ISO | Workpiece material | Hardness | Cutting speed Vc (m/min) |
Feed per tooth fz (mm/t) |
|---|---|---|---|---|
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Carbon steel | — 300 HB | 80 — 200 | 0.05 — 0.15 |
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Stainless steel | — 200 HB | 80 — 150 | 0.05 — 0.1 |
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Grey cast iron | 150 — 250 HB | 80 — 200 | 0.05 — 0.2 |
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Non-ferrous | — | 100 — 300 | 0.1 — 0.2 |
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Superalloys | — 40 HRC | 50 — 80 | 0.05 — 0.08 |
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Hard materials | — 50 HRC | 50 — 80 | 0.05 — 0.08 |
Internal boring (With one cutting edge)
| ISO | Workpiece material | Hardness | Cutting speed Vc (m/min) |
Depth of cut ap (mm) |
Feed fz (mm/t) |
|---|---|---|---|---|---|
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Carbon steel | — 300 HB | 80 — 200 | 0.5 — | 0.05 — 0.15 |
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Stainless steel | — 200 HB | 80 — 150 | 0.5 — | 0.05 — 0.1 |
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Grey cast iron | 150 — 250 HB | 80 — 200 | 0.5 — | 0.05 — 0.2 |
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Non-ferrous | — | 100 — 300 | 0.5 — | 0.1 — 0.2 |
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Superalloys | — 40 HRC | 50 — 80 | 0.5 — | 0.05 — 0.08 |
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Hard materials | — 50 HRC | 50 — 80 | 0.5 — | 0.05 — 0.08 |













