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y OPERATIONAL GUIDANCE Drill Length Drill Installation CARBIDE
Drill Holding
Installation Tolerance
Adjusting Screw
A
Thrust bearing type collet D1 Do not clamp on the flutes. Run-out < 0.03mm
chuck holds the drill securely.
A > D1 x 1.5 Thin Workpiece Interrupted Cutting
Coolant Method
Drill Installation If Bending One Process
Occurs
zLower the feed
1D1 when drillng
the interrupted
zWhen machining a prepared hole Support part.
with the stub type drill please set the Workpiece
the depth to 1D (D=drill diameter). Requires Prior
Two coolant positions, at the Machining
end and at the center are xUse the prepared hole as a
ideal. guide when using a drill with zSpot face with an
an oil hole. Depending on the end mill prior to
Stepped Holes cutting conditions, peck feed drilling.
is recommended.
Burring and Workpiece Chipping
DRILLING
zDivide the two processes. zLower the feed rate by 50%
xDrill the larger hole first.
at the end of through
*A tool for machining both
cutting.
chamfer and spot face can xAdd a 45°chamfer.
cChange the point angle.
be produced to order.
info@mitsubishitools.ru www.mitsubishitools.ru L027TECHNICAL DATA N001