ATORN centre drill with protective sinking, HSS form B 3.15 mm x 11.2 mm x 60 mm

Part Number: 11012031
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Centre drill HSS
• with protective sinking
• Execution: shape B, countersink angle 60 degree / 120 degree, without bead, relief ground, with spiral flutes, 120 degree protective sinking
• Drill diameter d 3,15 mm
• Body diameter D 11,2 mm
• Overall length L 60 mm
• Pilot length l 3,9-4,4 mm 
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