58° Carbide Fixed Shank Twist Drill Industrial Grade Precision Drilling Tool

1. Material and structural advantages

Using carbide material, the wear resistance is significantly higher than that of ordinary high-speed steel drill bits, and the service life is extended by 3-5 times.

Special coating technology (such as cobalt-containing and super-hard coating) further improves the ability to resist high-temperature oxidation and is suitable for high-speed cutting.

The helix angle is optimized to 36°-38° (about 30° for ordinary drill bits), and the chip removal resistance is reduced by more than 40%, reducing drilling pollution and heat accumulation.

The nano-grinding process forms a sharp cutting edge, and with a large chip removal groove space, it avoids chip blockage in deep hole processing.

2. Performance and processing advantages

The thickened drill core design (drill core thickness reaches 15%-20% of the diameter) improves rigidity and supports deep hole processing of more than 5 times the diameter (5D), with a hole deflection of ≤0.02mm.

The fixed handle structure (such as D3/D4 handle) is suitable for CNC machine tool spindles, reduces vibration, and improves centering accuracy by 30%.

The design of no chisel edge or re-grinding chisel edge reduces the axial cutting force by 50% and improves the roundness of the drill hole (up to IT8 level).

The variable spiral angle technology is suitable for different materials such as stainless steel and titanium alloy, and the hole diameter tolerance can be controlled at ±0.01mm.

3. Application scenario advantages

Covering difficult-to-process materials such as stainless steel, titanium alloy, and high-temperature alloy (such as GH4169), the cutting speed can reach 60-120m/min (ordinary drill bits are only 20-40m/min).

The special groove design supports the processing of brittle materials such as PCB boards and aluminum alloys, and the hole wall roughness is ≤Ra1.6μm.

4. Economic advantages

A single drill bit can be re-grinded 7-10 times, reducing the frequency of tool replacement.

High-efficiency processing reduces labor costs, for example, the efficiency is increased by more than 3 times when processing stainless steel.