Hole shaping chamfer tool

The utility model discloses a hole shaping chamfer tool, include base down, go up base and aluminium outer tube, the both ends difference block of aluminium outer tube is in the recess at two lower base tops middle parts, the both ends symmetry of two lower base one sides is equipped with the slotted hole, two seats of going to the bottom are put relative slotted hole and are connected through twotelescopic links respectively, the both sides swing joint of spring and upper base foot stall end is passed through to the both sides on base top down, the bottom of going up the base both sides allis equipped with first retainer plate, the top of base both sides all is equipped with the second retainer plate down, it is equipped with the screw to run through between first retainer plate and thesecond retainer plate, the top of screw is equipped with the blind nut, the top of blind nut is equipped with turns round the post. The utility model discloses down the aluminium outer tube can be carried to base and last base