Features:
1. Center and spotting drills are traditionally used to make a conical hole for a lathe center in order to make a starting point for a standard twist drill, designed to prevent the twist drill from walking.
2. Used for producing center holds in components or work pieces with require machining between centers.
Specification:
Type: Center Drill Bit
Material: High Speed Steel
Degrees: 60
Size Including:1.0mm 1.5mm 2.0mm 3.0mm 3.5mm 4.0mm 5.0mm 6.0mm
4pcs：1.0mm 2.0mm 2.5mm 5.0mm
5pcs：1.0mm 2.0mm 3.0mm 4.0mm 5.0mm
6pcs 1.0-5.0mm：1.0mm 1.5mm 2.0mm 2.5mm 3.0mm 5.0mm
6pcs 1.0-6.0mm：1.0mm 2.0mm 3.0mm 4.0mm 5.0mm 6.0mm
8pcs：1.0mm 1.5mm 2.0mm 2.5mm 3.0mm 3.5mm 4.0mm 5.0mm
10pcs：1.0mm 1.5mm 2.5mm 3.0mm 5.0mm（2 per size）
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