Dr Slick Diamond Grooved 4.0 in Hook File

Dr Slick Diamond Grooved 4.0 in Hook File is a double-sided hook file for restoring the point of a dulled hook. It is useful after contact with rocks, gravel or other hard features on the riverbed, as well as for checking and touching up flies before fishing. Its stainless-steel body carries two diamond-coated working surfaces: medium 300 grit and fine 600 grit.

Sharpening grooves help guide the underside and tip of the hook point, while the flat sections are used to hone its sides. The 300-grit face is suited to removing more noticeable dulling first, with the 600-grit face providing a finer finishing stage. This arrangement supports both routine hook maintenance and quick corrections at the waterside without requiring separate files.

At 4 in long, the file can be kept in a fishing vest pocket, tackle bag or compact tool kit. Use light, controlled strokes and maintain a consistent angle, checking the point frequently so that no more metal is removed than necessary. After use, rinse away deposits and dry the tool thoroughly, particularly if it has been exposed to salt water.

Key features of this hook file

• Two diamond-coated working surfaces
• Medium 300 grit and fine 600 grit
• Grooves for guiding the underside and tip of the point
• Flat sections for honing the sides of the point
• Stainless-steel construction measuring 4 in