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Precise Size11 pcs HSS core drill with Outside Diameter in inches: 7/16" 1/2" 9/16" 11/16" 5/8" 3/4" 13/16" 7/8" 15/16" 1" 1-1/16" 1 inch cutting depth for each drill cutter
Premium ManufacturingCNC-machined high precision annular drill bit set with 3/4 inch Weldon shank (with 2 flats) for secure clamping and edge finish designed for smooth reamed burr-free edges of drilled holes
Wide ApplicationCompatible with various brands of magnetic drills including Alfra BDS Dewalt Euroboor Hougen Ruko
Caution 1Remove all screws before installing to avoid installation failure. Caution 2If the drilled cylinder does not fall off naturally it needs to be forced out by tapping with the pilot pin before drilling Caution 3When drilling multiple layers of plates the cylinder in the middle of the hollow drill should be removed after each layer is drilled. Otherwise the drill bit may be damaged.
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