Magnetic precision ground base. Articulated arm with rotary lock. Turn magnet off to reposition, then turn switch for magnet to hold unit firmly in position. Combination dial and scribing clamp with fine adjustment control, for calibrating as well as measuring in machining, design and inspection work. Features & Benefits:Magnetic precision ground base.Articulated arm with rotary lock.Turn magnet off to reposition, then turn switch for magnet to hold unit firmly in position.Combination dial and scribing clamp with fine adjustment control, for calibrating as well as measuring in machining, design and inspection work.Lifetime Guarantee*.Model No. AK960 Specifications: Model No AK960 Brand: Sealey Footprint: 64 x 50mm Maximum Height: 370mm Nett Weight: 1.34kg