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Metal Hole Saws item ID: BMH4


Technical Specs:
- Tooth material: M3
- Tube Material: HSS 6341
- Tooth HRC: 65~66
- Drilling life (steel plate thickness: 3mm): 50 holes (with coolant)
- Drilling time: 45 seconds per hole		 Technical specs for mandrels:
- Whole length: 118mm
- Drill bits length: 75mm
- Material: HSS 4341
- Connection rod hardness: HRC 38
- Bits hardness: HRC 63

RPM table:

Update: Feb. 08, 2007
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