Amana Tool 51550 Carbide Tipped Bullnose 5/64 R x 17/32 D x 1/2 CH x 1/2 Inch SHK Router Bit
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SKU: 51550 Amana Tool
The Amana 51550 is a carbide tipped bullnose bit with a 5/64 in. radius, 17/32 in. in diameter and 1/2 in. of cutting height, on a 1/2 in. shank. Its nose diameter is 5/32 in., so it gives a full half-round with no flats on 5/32 in. thick stock.
| Part number | Amana Tool 51550 |
|---|---|
| Type | Bullnose bit |
| Construction | Carbide tipped |
| Radius | 5/64 in. |
| Cutting diameter | 17/32 in. |
| Cutting height | 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 180Β° 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 51540 (5/64 in. radius, 17/32 in. dia., 1/2 in. cut, 1/4 in. shank), Amana 51551 (3/32 in. radius, 21/32 in. dia., 1/2 in. cut, 1/2 in. shank), Amana 51553 (1/8 in. radius, 23/32 in. dia., 9/16 in. cut, 1/2 in. shank), Amana 51543 (1/8 in. radius, 23/32 in. dia., 9/16 in. cut, 1/4 in. shank).
