센터펀치의 끝부분 너링가공
방진구를 이용하여 끝부분 가공
열처리와 뜨임 후 표면 다듬기
blackening에 필요한 폐오일
blackening 완료.
2012/06/06 핸드피스를 이용한 미니 버핑기 제작
5mm collets
8mm 선반 콜렛 collet
Automatic piercing saw
Belt pully system for milling attachment
Boring Head for milling
boring tool bit holder
Center punch
Centering scope
Collet clamp
Dies Holder
DIY Watchmaker's lathe
face plate for drill
File Rest
Finger plate
Frog tool
gear cutter
gear cutter arbor
Graver honing jig
Hand tapping tool
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email. kwanghun.hyun@gmail.com
kwanghun hyun