Right angle drill bit attachment features: 90 degree attachment angle lets you drill in tight corners and angles 1.1 gear ratio Use with power or hand drills. You can even use this device with sanding, buffing and other attachments Lubricated steel gears High impact plastic body Right or Left hand use 3/8" - 24 THD 1/16"-3/8" Capacity 1.5mm-10mm Capacity.