Made of material, safe, non-toxic and durable. Anodized surface, rust and corrosion resistant. Easy to use and clean. to use. Depending on the needs, you just need to put the required size to drill holes on the board. Center lines ensure precise alignment when drilling on multiple surfaces. Suitable for center hole drilling, dowel pin drilling. This hole locator comes with 3 different sizes (6mm or 8mm or 10mm), so you can easily drill holes of different sizes and meet different needs. Size:C Features: Made of material, safe, non-toxic and durable. Made of aluminum alloy, designed for strong strength and long service life. Anodized surface , rust and corrosion resistant. Center lines ensure precise alignment when drilling on multiple surfaces. Suitable for center hole drilling, dowel pin drilling. This hole punch locator comes with 3 different sizes (6mm or 8mm or 10mm), so you can drill holes easily of different sizes and meet different needs. Easy to use and operate. Depending on the needs, you just need to put the required size to drill holes on the board. Features: Material: Aluminum Alloy. Sleeve Size: 6mm, 8mm, 10mm. Contents: 1 x woodworking drill set. 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.