Can Deep Hole Drills Be Regrinded and Reused?

Qualified high-speed steel and carbide deep hole drills can be regrinded and reused if there is no severe damage during normal use. This method effectively reduces enterprise tool procurement costs and is suitable for factory batch processing scenarios.

When deep hole drills have common wear problems such as blunt cutting edges, unsmooth cutting and rough hole walls, professional precision regrinding can restore the original cutting angle, edge sharpness and guiding accuracy. The repaired drills can be used for standard deep hole processing, with processing performance consistent with new drills.

Drills with irreversible damage including body bending, large-area edge chipping, severe fracture and base material deformation are not recommended for regrinding and reuse. Repaired defective drills will have concentricity errors and cause hole deviation or tool breakage during processing. Our deep hole drills adopt uniform base materials and stable heat treatment processes. With qualified toughness and wear resistance, the drills support multiple regrinds and have a longer service life than ordinary low-quality drills.