Hand brace drill. 
Product specifications: 1/4 inch, 3/8 inch.
Clamping range: 0.6-6mm (1/4 inch) and 1.5-10mm (3/8 \")
1/4 inch length 320mm; 3/8 inches long 380mm.
Gross weight of original packing: 1/4 inch (0.73kg); 3/8 inch model 0.95kg.
Product features:
1. Cast iron material, precision silicon melt technology casting drill frame and hand wheel;
2. High strength ABS engineering plastic handle with hollow handle, which can be stored in spare drill chuck;
3. Powder metallurgy process precision casting gear, high precision, hardening and hard, wear resistance;
4. Double-gear drive mechanism, flexible operation of hand, not easy to die;
5. Using the key drill chuck with common hand electric drill, the clamping precision is high, and the drill bit is not easy to be eccentric.
Scope of application:
Products do not need any power drive, hand control speed and drilling position, compared with the electric drill is easy to control and safety, but low speed, low efficiency, the transmission torque is small, so not suitable for drilling hard metal material, ceramic tile, masonry, concrete, etc.; Suitable for wood, bamboo, soft sheet metal, copper, aluminum, plastic, PVC, acrylic, glass fiber board, circuit board, etc.