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The Dynabit™ Line features a modest down-shear for an excellent finish. The helix bits have a spiral-like twist to the cutting edges, making them especially good on difficult materials such as melamine. An adhesive-trapping gap between cutting edges and pilot bearing is featured on tools #47111 & #47113.

NOTE: Downshear bits are not intended for router table use.

AMAX Extended Life Features:

200% longer life-time even when working with abrasive materials
Superior geometric design
Advanced grinding technology that improves the carbide's resistance to wear
Super clean cuts


Unit of Measure


Diameter (D)

N/A 5/8 in

Cut Height

N/A 5/8 in

Shank (1)

N/A 1/4 in

Overall Length

N/A 2 in


N/A Flush Helix


N/A 2 w/Bearing

Repl. Bearing

N/A 47712

Replacement Parts

N/A , Amana Tool 1/4 ID x 5/8 OD x .195 Thick Steel Ball Bearing Guide ($4.88)


N/A Amana Tool