Amana Tool 51549 Carbide Tipped Bullnose 7/16 Radius x 1-1/2 Dia x 1-1/2 Cut Height x 1/2 Inch Shank Router Bit
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SKU: 51549 Amana Tool
The Amana 51549 is a carbide tipped bullnose bit with a 7/16 in. radius, 1-1/2 in. in diameter and 1-1/2 in. of cutting height, on a 1/2 in. shank. Its nose diameter is 7/8 in., so it gives a full half-round with no flats on 7/8 in. thick stock.
| Part number | Amana Tool 51549 |
|---|---|
| Type | Bullnose bit |
| Construction | Carbide tipped |
| Radius | 7/16 in. |
| Cutting diameter | 1-1/2 in. |
| Cutting height | 1-1/2 in. |
| Shank diameter | 1/2 in. |
How to use it
A bullnose bit rounds the whole edge of a board in one pass, top and bottom, into a half-circle. It is the profile for stair treads, window sills, shelf fronts, countertop edges and handrails. The nose diameter, twice the radius, is the stock thickness that gets a full 180° round with no flats. On thicker stock you get a flat at the top and bottom of the curve. To pick a size, halve your stock thickness: 3/4 in. material wants a 3/8 in. radius. This bit has no bearing, so it must run against a router table fence or with an edge guide on a handheld router.
Other sizes in this range: Amana 51560 (3/8 in. radius, 1-3/8 in. dia., 1-27/64 in. cut, 1/2 in. shank), Amana 51559 (5/16 in. radius, 1-1/8 in. dia., 1 in. cut, 1/2 in. shank), Amana 51563 (9/16 in. radius, 1-13/16 in. dia., 1-1/2 in. cut, 1/2 in. shank), Amana 51558 (17/64 in. radius, 1-1/32 in. dia., 1 in. cut, 1/2 in. shank).
