Shenoy Engineering Private Limited manufactures Automatic Duplex Back Chamfering Tool. Shenoy Engineering Private Limited supplies Welding Machines & Tools, Automatic Back Spot Facing Tools, Milling & Boring Head, Plano milling Conversion Kit, Taper Jib, Universal Milling Head, Flange Facer Pneumatic Presses, etc. Automatic Duplex Back Chamfering Tool is offered for hole diameter 5 mm to diameter 22 mm. These tools are meant for deburring and creating a light chamfer around the bore. For heavy chamfers and for bore dia 23 mm and above, we recommend the Automatic Duplex Back Chamfering Tool. Two triangular inserts are mounted on the wing - one for top chamfering and the other for bottom chamfering. In the anti-clock wise rotation, the tool enters the bore; in clockwise rotation, the wing opens up due to centrifugal force and chamfers. Pull the tool upward for top chamfering and push the tool down for back chamfering. Again in the anti-clockwise rotation, pull the tool gently out of the bore, as wing retracts into the pocket. The carbide inserts are standard, centre clamping type.