U Drill – Internal Cooling Indexable Insert Drill for SPMT, SPGT, WCMT and WCGT
U Drill indexable insert drills are designed with an internal coolant supply for efficient drilling, cooling and chip evacuation. The drill body is made from X40CrMoV5-1 / 1.2344 tool steel with heat treatment and a surface hardness of HRC 65–70 for improved durability. Drilling depth options from 2×D to 5×D are available, while the enlarged chip space helps improve chip evacuation during machining. The drill body is compatible with SPMT, SPGT, WCMT and WCGT inserts.
1. Internal coolant supply design
2. Efficient cooling and chip evacuation
3. High-quality 1.2344 tool steel body
4. HRC 65–70 surface hardness
5. 2×D to 5×D drilling depth options
6. Enlarged chip evacuation space
7. Corrosion-protective surface coating
8. Multiple drill diameters available
Specifications

| Specification | U drill Diamter ΦDc | Shank ΦD | Dimension | ||
| C32-3D29-91SP09 | 29.00 | 32 | 172.00 | 91.00 | 112.00 |
| C32-3D29.5-93SP09 | 29.50 | 174.00 | 93.00 | 114.00 | |
| C32-3D30-94SP09 | 30.00 | 178.00 | 94.00 | 118.00 | |
| C32-3D30.5-96SP09 | 30.50 | 180.00 | 96.00 | 120.00 | |
| C32-3D31-97SP09 | 31.00 | 181.00 | 97.00 | 121.00 | |
| C32-3D31.5-99SP09 | 31.50 | 183.00 | 99.00 | 123.00 | |
| C32-3D32-100SP09 | 32.00 | 184.00 | 100.00 | 124.00 | |
| C32-3D32.5-102SP09 | 32.50 | 186.00 | 102.00 | 126.00 | |
| C32-3D33-103SP09 | 33.00 | 187.00 | 103.00 | 127.00 | |
| C32-3D33.5-105SP09 | 33.50 | 189.00 | 105.00 | 129.00 | |
| C32-3D34-106SP11 | 34.00 | 190.00 | 106.00 | 130.00 | |
| C32-3D34.5-108SP11 | 34.50 | 192.00 | 108.00 | 132.00 | |
| C32-3D35-109SP11 | 35.00 | 193.00 | 109.00 | 133.00 | |
| C32-3D35.5-111SP11 | 35.50 | 195.00 | 111.00 | 135.00 | |
| C32-3D36-112SP11 | 36.00 | 96.00 | 112.00 | 136.00 | |
| C32-3D36.5-114SP11 | 36.50 | 98.00 | 114.00 | 138.00 | |
| C32-3D37-116SP11 | 37.00 | 06.00 | 116.00 | 146.00 | |
| And more | |||||
Why choose us?

- Most kinds of diameter of d U drills for choice.
- High-quality steel 1.2344 with heat-treated for much longer tool life
- Internal coolant supply can help efficiently cooling and chip evacuation
- Special coating to corrosion protection and extended lifespan
- Speical design with more space for chips
Recommended Products
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