loading
SUBORUI
| Availability: | |
|---|---|
| Quantity: | |
1.Center drill bits can be used to make conical holes for a lathe center in order to make a starting point for a standard twist drill, designed to
prevent the twist drill from walking, as well as for producing center holds in components or work pieces with require machining between centers.
2.Available for all Kinds of Materials: Metal, Alloy, Copper, Iron, Wood, Aluminum, and so on.
3.Durable and Resistance: Center drill bit is made of HSS high speed steel, with extremely sharp blade, low consumption and durable with
impact resistance, wear resistance.
4.center drills have flutes and cutting points on both ends. this allows the user with the ability to reverse the drill and utilize both ends.
5.Manufactured from M35 cobalt steel,for much faster cutting and extra longer life span when compared with an average HSS drill bit.
6.60 degree countersink angle fits all standard centers.
7.High-speed steel tools are good for most general purpose applications, offering a combination of hardness and toughness for wear resistance.
Custom OEM/ODM Solutions
Product Customization:
Submit your design drawings or physical samples – we engineer precision twist drills tailored to your specifications.
Optimize existing tools for enhanced durability, cutting speed, or cost efficiency.
Packaging Design
Retail-Ready Solutions:
Custom-branded boxes, multi-language manuals, or eco-friendly packaging.
Design-to-delivery support for seamless market entry.
| Type A HSS Center Drill | |||
| d | D | L | I |
| 1.00 | 3.15 | 33.50 | 1.90 |
| 1.25 | 3.15 | 33.50 | 1.90 |
| 1.60 | 4.00 | 37.50 | 2.80 |
| 2.00 | 5.00 | 42.00 | 3.30 |
| 2.50 | 6.30 | 47.00 | 4.10 |
| 3.15 | 8.00 | 52.00 | 4.90 |
| 4.00 | 10.00 | 59.00 | 6.20 |
| 5.00 | 12.50 | 66.00 | 7.50 |
| 6.30 | 16.00 | 74.00 | 9.20 |
| Type B HSS Center Drill | |||
| d | D | L | I |
| 1.00 | 4.00 | 37.50 | 1.90 |
| 1.25 | 5.00 | 42.00 | 2.20 |
| 1.60 | 6.30 | 47.00 | 2.80 |
| 2.00 | 8.00 | 52.00 | 3.30 |
| 2.50 | 10.00 | 59.00 | 4.10 |
| 3.15 | 11.20 | 63.00 | 4.90 |
| 4.00 | 14.00 | 70.00 | 6.20 |
| 5.00 | 18.00 | 78.00 | 7.50 |
| 6.30 | 20.00 | 83.00 | 9.20 |
| Type R HSS Center Drill | |||
| d | D | L | I |
| 1.00 | 3.15 | 33.50 | 3.00 |
| 1.25 | 3.15 | 33.50 | 3.35 |
| 1.60 | 4.00 | 37.50 | 4.25 |
| 2.00 | 5.00 | 42.00 | 5.30 |
| 2.50 | 6.30 | 47.00 | 6.70 |
| 3.15 | 8.00 | 52.00 | 8.50 |
| 4.00 | 10.00 | 59.00 | 10.60 |
| 5.00 | 12.50 | 66.00 | 13.20 |
| 6.30 | 16.00 | 74.00 | 17.00 |
