・Drill chuck is positively coupled with the holder.
・Short (L length) and compact.
・Clamping force can be increased by the attached wrench.
TRADITIONAL KEYLESS CHUCK & SHOWA SDC CHUCK:
- Clamping: Manual
- TWISTING MOMENT: 6.9 N・m
- Comparison ％: 100
SHOWA SDC CHUCK:
- Clamping: With a wrench
- TWISTING MOMENT: 21.6 N・m
- Comparison ％: 314
Note: Twisting moment was measured with a ø9mm test bar.