■ 제 원 / SPECIFICATION
1. 1/2 x 08mm [사각]
2. 1/2 x 09mm [사각]
3. 1/2 x 14mm [사각]
4. 1/2 x 14mm [육각]
5. 1/2 x 14mm [오목사각]
6. 1/2 x 16mm [12각]