Buffer Drill Attachment

attachment
a writ authorizing the seizure of property that may be needed for the payment of a judgment in a judicial proceeding
An extra part or extension that is or can be attached to something to perform a particular function
A computer file appended to an e-mail
The condition of being attached to something or someone, in particular
a feeling of affection for a person or an institution
a supplementary part or accessory

buffer
Lessen or moderate the impact of (something)
(chemistry) an ionic compound that resists changes in its pH
add a buffer (a solution); "buffered saline solution for the eyes"
Treat with a chemical buffer
buffer zone: a neutral zone between two rival powers that is created in order to diminish the danger of conflict

drill
a tool with a sharp point and cutting edges for making holes in hard materials (usually rotating rapidly or by repeated blows)
bore: make a hole, especially with a pointed power or hand tool; "don't drill here, there's a gas pipe"; "drill a hole into the wall"; "drill for oil"; "carpenter bees are boring holes into the wall"
similar to the mandrill but smaller and less brightly colored