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yStep Type
yDimensions VP15TFD2 L4 L1
L3
Stock D2 L2 D4
D1
Drill Dia. D4Dimensions (mm)16
D1 17
(mm) DRILLING MHE STEP DRILLSL4 L3 L1 L218
18
10 q 16 15 50 100 50 18
11 q 17 20 55 110 55
12 q 18 20 55 110 55
13 q 18 20 55 110 55
14 q 18 20 55 110 55
yChamfer Diameter Reference Range : Applicable Range
Max. Chamfer Cutting Drill Dia. 10 11 Chamfer Cutting Edge Dia. D2 (mm) 17 18
Edge Dia. (mm) D1 (mm) 12 13 14 15 16
16 10
17.6 11
19.2 12
20 13
20 14
20 15
20 16
20 17
yStep Length Range : Applicable Range yFlute Length Range : Applicable Range
Drill Dia. Step Length L4 (mm) 30 Drill Dia. Flute Length L3 (mm)
D1 (mm) 10 15 20 25 D1 (mm) 45 50 55 60 65
10 10 10.0~
11 11 14.0
12 12
13 13
14 14
15 15
16 16
17 17
Product Range
Drill dia. D1 : 1018mm
Chamfer dia. D2 : D2/D1<1.6 and up to 18m
Overall length L1 : To be determined based on the straight type drill.
If the chamfer diameter is 16mm, the maximum
overall length is 112mm.
Shank dia. D4 : Same as the chamfer diameter up to 16.
Increases in 0.5mm increments for the diameter
larger than 16.
Tool grade : VP15TF
Notes When Regrinding and Recoating the Drill
• When carrying out regrinding, it is necessary to recoat the
drill to maintain tool life.
• When requesting regrinding and recoating of the drill, contact
Mitsubishi Materials sales staff.
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