(1)LONGJER NO: 721-0060
6mm ( 1/4กจ) HSS COUNTERSINK
*H.S.S.hardened,HRc 62-65,5-flute blade.1/4กจ shank
(2)LONGJER NO: 721-0095
10mm ( 3/8กจ) HSS COUNTERSINK
*H.S.S.hardened,HRc 62-65,5-flute blade.1/4กจ shank.
(3)LONGJER NO: 721-0130
13mm ( 1/2กจ) HSS COUNTERSINK
*H.S.S.hardened,HRc 62-65,5-flute blade.1/4กจ shank.
(4)LONGJER NO: 721-0160
16mm ( 5/8กจ) HSS COUNTERSINK
*H.S.S.hardened,HRc 62-65,5-flute blade.1/4กจ shank.
(5)LONGJER NO: 721-0190
19mm ( 3/4กจ) HSS COUNTERSINK
*H.S.S.hardened,HRc 62-65,5-flute blade.1/4กจ shank.