To resolve instability of nail feeding in a multiple nail magazine.

A front feeding pawl 9 and a rear feeding pawl 10 are provided in a nail feeding mechanism. An abutting part 10b is provided in front of a pawl part 10a of the rear feeding pawl 10. An abutting face of the abutting part 10b to a connecting nail is wider than a gap between nails and it can not go in between nails. When the front feeding pawl 9 retreats and it seizes the trailing nail TN1 of a first row, the abutting part 10b and the pawl part 10a enter a nail passage, the abutting part 10b goes into a gap between the trailing nail TN1 of the first row and the leading nail FN2 of a second row, and the pawl part 10a goes in behind the leading nail FN2 of the second row. After nail feeding, the feeding pawl retreats, the abutting part 10b and the pawl part 10a run onto a side face of a connecting nail N2 of the second row and they return to withdrawn positions, the front feeding pawl 9 engages with the leading nail FN2 of the second row, and nail feeding is carried on.