Drills holes with good precision
内部給油式：ダブルマージン
副マージン
Internal Coolant Supply: Double Margin
D Special double margin for good hole precision (internal coolant supply)
入り口から副マージンが 効果を発揮 !! MDE Type
Conventional Tool
Sub-margin
Effective use of submargin from entrance
0 0.01 0.02 0.03 0.04 0.05 0 0.01 0.02 0.03 0.04 0.05 0.05 0.10 0.15 0.20 0.05 0.10 0.15 0.20 0
穴
径 拡 大
(mm) D Comparison of hole precision (die steel drilling)
2
4
6
Competitor's Standard Drill Single margin
穴 曲 が り
MDE Type
(mm)
2
4
6
2
4
6
Competitor's Standard Drill Single margin
MDE Type
0
2
4
6
No. of Holes
Work Material: DH31S (49HRC), Tool: MDE 0800S08H05 (ø8mm×5D) with hole Cutting Conditions: v c =17 m/min, f =0.07 mm/rev, internal coolant supply (water soluble)
6
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