▲Features: ◠10mm keyless chuck, accept 0.8-10mm drill bits. ◠Apply aluminum and tool steel, strong & durable. ◠Right angle drill attachment can run forwards or in reverse. ◠Make electric drill power swerve 90°for hard-reached places. ◠Simple to install and operate, with a handle for stable usage. ◠8mm hex shank makes it suitable for almost all standard drills.