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2. Annular cutter - Wikipedia

   en.wikipedia.org/wiki/Annular_cutter

   An annular cutter (also called a core drill, core cutter, broach cutter, trepanning drill, hole saw, or cup-type cutter) is a form of core drill used to create holes in metal. An annular cutter, named after the annulus shape , cuts only a groove at the periphery of the hole and leaves a solid core or slug at the center.

3. Annulus (mathematics) - Wikipedia

   en.wikipedia.org/wiki/Annulus_(mathematics)

   Annular cutter – Form of core drill Annulus theorem/conjecture – In mathematics, on the region between two well-behaved spheres Focaloid – Geometric shell bounded by two concentric, similar ellipses or ellipsoids Pages displaying short descriptions of redirect targets

4. End mill - Wikipedia

   en.wikipedia.org/wiki/End_mill

   Common tool bit types are: square end cutters, ball end cutters, t-slot cutters, and shell mills. Square end cutters can mill square slots, pockets, and edges. Ball end cutters mill radiused slots or fillets. T-slot cutters mill exactly that: T-shaped slots. Shell end cutters are used for large flat surfaces and for angle cuts.

5. Polar-class icebreaker - Wikipedia

   en.wikipedia.org/wiki/Polar-class_icebreaker

   Polar-class icebreakers USCGC Polar Star (WAGB-10), USCGC Polar Sea (WAGB-11) are heavy icebreakers operated by the United States Coast Guard (USCG). These cutters, specifically designed for icebreaking, have reinforced hulls, special icebreaking bows, and a system that allows rapid shifting of ballast to increase the effectiveness of their icebreaking.

6. Associated Equipment Distributors - Wikipedia

   en.wikipedia.org/wiki/Associated_Equipment...

   In 1919, he created the Associated Equipment Distributors as a trade association for companies like his own. [6] In 1954, Hunter returned to AED as a member of the advisory board. [6] In 1966, independent distributors of construction equipment sold $1.1 billion in new equipment and $270 million in used equipment in the United States.

7. Hamilton-class cutter - Wikipedia

   en.wikipedia.org/wiki/Hamilton-class_cutter

   The 378-foot WHEC cutter program which created the Hamilton class was initiated in the 1960s. The Hamilton-class cutters were intended to fulfill both the peacetime and wartime requirements of the Coast Guard. [13] Construction at Avondale Shipyards on the lead ship, the Hamilton, began in the 1960s and the cutter was commissioned on March 18 ...