Dogyu Sentakun Showa Bolt Driver 5/16in #02457

Patented. [How to use] 1. Drill a pilot hole in the timber (pilot hole guide: 6mm for 2-bu 5-rin / 8mm for 3-bu) 2. Insert the Showa bolt into the tool and thread it in temporarily by 2 to 3 turns 3. Run the tool in forward rotation and screw the bolt into the timber with the pilot hole. 4. Once the wood screw section is fully in, remove the tool from the Showa bolt in reverse rotation Showa bolt installation complete.