Set of instruments do centering pins 2 to 10 mm. Hole Locator in Wood, Red Description: It is a set of self-centering drill guides for do holding and centering during drilling and drilling The height of the two legs can be adjusted depending on the thickness of the board, making drilling more accurate and a powerful tool Parameters: Drill guide sleeve: 2 or 3 or 4 or 5 or 6 or 8 or 10mm. Wide application: suitable do fixing on plates of different thickness, two claws allow you to quickly set the center of the hole, groove design do dust removal Material: stal stainless, surface oxidation treatment, high hardness, wear resistance, rust, easy to use Specification: Material: stal stainless Size Chart: Length: ok. 140 mm or 5,51 inch, diameter: ok. 50 mm or 1,97 inch, thickness: ok. 32 mm or 1,26 inch The package includes: 1-piece vertical self-centering device do studs Drill sleeves in 7 sizes Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.