ATORN centre drill with radius, HSS form R, 1.6 mm x 4 mm x 30.3 mm

Part Number: 11010016
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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 1,6 mm
• Body diameter D 4 mm
• Overall length L 30,3 mm
• Pilot length l 4,2-4,7 mm
• Radius 4 mm