Description: The automatic dual purpose deburring and chamfering tool deburrs and chamfers a drilled hole at both sides when the tool passes through and reverses. No change either in the spindle speed or in the direction of spindle rotation or in the job set-up is required. The tools can be deployed immediately after drilling. Neither manual interruption nor special operational skill is required at any stage of its use. The time required for both purposes like deburring and chamfering is a few seconds. The chamfers are uniform and concentric to the above. The deburring tool consists of only 4 parts including shank, HSS blade, fulcrum pin and screw for adjusting blade projection. The blade, having certain unique features, is made of HSS and coated with tungsten carbide to enhance wear resistance. After deburring and chamfering on the top surface, the blade slowly retracts into the pocket provided in the tool shank. As the cutting pressure increases the blade gets slowly released from the pocket and as the cutting pressure decreases the deburring and chamfering operations are done on the bottom of the hole. Robust construction and tungsten carbide coating make the tools and the blades highly enduring under the most severe cutting conditions.
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