Mounting Tools
1-27
1
Setup
Mounting the Milling Tool
Precautions when Milling
Precautions when Using Cutting Tools
Table of the Milling Tool (End Mill)
• Do not touch the milling tool (end mill) with bare hands. This may cause injury.
• Always insert the end mill into the chuck before tightening the chuck nut. Tightening the chuck nut with
no end mill inserted can result in overtightening of the chuck, causing disengagement of the jaws of the
chuck and the chuck nut, so that the chuck gets stuck inside the spindle and cannot be removed even if
the chuck nut is removed.
• Clean the chuck frequently(
P.1-31). Dust from cutting or grinding accumulating inside the spindle
and chuck can result in scratching and cause runout.
• Clean the shank of tools before insertion into the chuck. Dirt entering the chuck can cause runout.
• Take care not to overtighten the chuck. Overtightening can damage the spindle.
• Select an appropriate end mill for the operation. Also, select suitable machining conditions.
• You are recommended to select an end mill shaft diameter with a tolerance of
with respect to the
chuck nominal diameter. A shaft diameter with a tolerance of
can be mounted. However, using a
shaft not meeting these recommended tolerances may result in problems of runout or inadequate
holding force.
• Before starting work each day, check the end mill, chuck, and chuck nut for damage. After the
inspection, gradually increase the operating speed.
• At the time of purchase, a temporary pin is mounted in the spindle. Remove the temporary pin
before mounting the end mill.
• Clean the shank of tools before insertion into the chuck. Dirt entering the chuck can cause runout.
• Do not apply severe shocks. Do not disassemble.
Model number
Blade diameter(
φ
D)
Blade length(a)
Active length(a1)
Whole length(A) Shank diameter(
φ
d)
SPB-0068
φ
3
12 mm
55 mm
φ
6
SPB-0069
φ
4
8 mm
24 mm
70 mm
φ
6
SPB-0070
φ
6
12 mm
42 mm
80 mm
φ
6
SPB-0071
φ
6
12 mm
63 mm
120 mm
φ
6
SPB-0072
φ
4
8 mm
50 mm
φ
6
SPB-0074
φ
3
6 mm
50 mm
φ
6
+0
- 0.01
+0
- 0.1
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