CoroDrill® 862
Solid carbide and polycrystalline diamond (PCD) micro drills ideal for precision machining in small parts
Outstanding performance in small part machining up to 16 times diameter
These micro drills offer outstanding performance in holes from 0.30–3.0 mm (0.012–0.118 inches) diameter. They are available in sizes that go as deep as 16 × diameter.
Through-coolant in 1 mm and above diameter
Internal coolant holes deliver coolant directly to the tip of the micro drill even at deep drilling depths of 16× diameter. This results in excellent cutting performance and chip evacuation.
Extended tool life using PCD diamond drills
The PCD diamond micro drills offer longer tool life than solid carbide. Excellent for cutting difficult materials such as platinum and green ceramics.
Application
- Achievable hole tolerance: ISO standard JS7 (+/- 6 micron) 9 × D solid carbide drills have hole tolerance H7
- Suitable for all materials
- Drill lengths: 9×,12×,16× diameter
- Drill diameter range: 0.3–3 mm (0.0118–0.118 inch)
- Use with CoroChuck 930 high precision chucks
Micro drills product range
CoroDrill® 862 solid carbide drills with -GM geometry (standard stocked)
| Drill type | Length/diameter ratio | No. of standard article | Diameter range | Coolant | Shank |
| Type 1 | 9 × Dc coated | 55 | 0.30–3.00 mm | External coolant | 3 mm |
| Type 1 | 9 × Dc coated | 37 | 1.00–3.00 mm | Internal coolant | 3 mm |
| Type 1 | 12 × Dc coated | 37 | 1.00–3.00 mm | Internal coolant | 3 mm |
| Type 1 | 16 × Dc coated | 21 | 1.00–3.00 mm | Internal coolant | 3 mm |
| Type 2 | 2 × Dc pilot* | 55 | Match 12 & 16×D | External coolant | 4 mm |
CoroDrill® 862 PCD drill with -GM geometry (non-stocked standard)
| Drill type | Length/diameter ratio | No. of standard article | Diameter range | Coolant | Shank |
| Type 1 | 5–12 ×Dc | 66 | 1.20–3.00 mm | External coolant | 3mm |
| Type 3 | 5–12 ×Dc | 30 | 0.30–1.20 mm | External coolant | 3mm |
For cutting data, please refer to CoroPlus® Tool Guide
*Pilot drill uses -GP geometry
Registered web users can also customise and order their tools online.
Highlights
Tool and cutting data recommendations
Struggling to find the right tool for the job? CoroPlus® Tool Guide offers quick and accurate tool recommendations on all your digital devices.
Reconditioning
Recondition your round tool up to 3 times for major cost savings with our reconditioning service.
Solid Round Tools catalogue
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