(1) 115mm disc. (2) 12,000 rpm. (3) 3.0Ah Li-ion battery x 2. (4) 50 min. charger. (5) Lock-on switch. (6) Spindle lock for easy disc change. (7) 2-position side handle. (8) Durable aluminum gearbox housing. (9) Soft grip. (10) Battery indicator.