ATORN centre drill with radius, HSS form R, 4.0 mm x 10 mm x 56 mm

Part Number: 11010040
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Centre drill HSS
• with radius
• Execution: shape R, countersink angle 60 degree, with radius, relief ground, with spiral flutes
• Advantages: The radius compensates positional imprecisions of the lathe centres. Reduced risk of breakage of the centre drill bit (no sharp transition).
• Dimensions: diameter 0.5 and 0.8 mm, only available for single-sided cutting.
• Drill diameter d 4,0 mm
• Body diameter D 10 mm
• Overall length L 56 mm
• Pilot length l 10,0-10,6 mm
• Radius 10 mm
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