PCD point drills
These are PCD drills for drilling pilot holes in hard brittle materials such as ceramics and quartz glass.
As these drills are for position-controlled drilling jobs on hard brittle materials, they are made of PCD, which is a type of sintered diamond that has superb abrasion resistance.
While the simultaneously released PCD multi-angle drills alone can handle high-precision machining jobs, the additional use of PCD point drills will improve the hole-positioning precision and allow for more stable job execution.
The standard edge diameters are between φ0.3 and φ3.0 mm.
Technical information
Position-controlled drilling of quartz glass (SiO₂)
Work size: 50 mm×50 mm Drilling 900 holes
Tool used: PCD multi-angle drill φ0.45
Workpiece material: SiO₂
Coolant: water-soluble cutting fluid
| Cutting conditions: | |
| Tool diameter (mm) | φ2.0 |
| Rotation speed (rpm) | 4,000 |
| Feed (mm/rev) | 0.001 |
| Machining depth (mm) | 2.0 |
| Step feed (mm) | 0.4 |
| No. of holes | 121 |
Enlarged photo of the workpiece with a drilled hole
Demonstration video
