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 TM 9-2815-226-34-1
(j) Apply cutting oil to thrust surface and tool bit.
CAUTION
ROTATE T-HANDLE DRIVE VERY SLOWLY TO AVOID CHATTER AND UNEVEN
THRUST SURFACE.
NOTE
Keep tool bit well oiled while cutting.
(k) Turn boring bar clockwise one full revolution to check tool bit cutting depth and pat tern.
CAUTION
REMOVE ONLY AMOUNT OF MATERIAL NECESSARY TO PROVIDE SMOOTH,
EVEN THRUST SURFACE.
NOTE
Each graduation line on stationary collar is 0.001 in. (0.025 mm).
(l) Loosen wingscrew on depth setting collar and turn collar to right until indexing line moves one
graduation. Tighten wingscrew.
3-103
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