Sale!

51557 Carbide Tipped Bullnose 1/4 Radius x 1 Dia x 1 x 1/2 Inch Shank

Amana 51557 Carbide Tipped Bullnose 1/4 Radius x 1 Dia x 1 x 1/2 Inch Shank

Name: Amana 51557 Carbide Tipped Bullnose 1/4 Radius x 1 Dia x 1 x 1/2 Inch Shank
SKU: Amana 51557
Availability: InStock

Original price was: $76.85.Current price is: $57.64.

BULL NOSE 1/4″ RAD. 1/2 SHANK

UPC: 738685515570 SKU: Amana 51557 Categories: Amana Tool, Bullnose Router Bits, Profiling Router Bits, Router Bits

Item Description

Shape the full edge of a workpiece with a bullnose radius bit. Ideal for shaping stair treads, window sills, table and counter edges, shelves, and making moldings. The “nose diameter” (M) is the thickness of stock that can be nosed, i.e., given a full 180-degree roundover. Flats at top and bottom of the cutting edges create fillets on stock thicker than the nose diameter. Must be used with an edge guide on handheld routers or the fence on a router table.

Specifications

Diameter (D)	1
Radius (R)	1/4
Cutting Height (B)	1
Shank (d)	1/2
Overall Length (L)	2-1/2
M	1/2
Flutes	2

Other Sizes Available

Radius (R)	M	Cutting Height (B)	Diameter (D)	Shank (d)	Overall Length (L)	Flutes	Replacement Bearing	Tool No.
17/64 (6.75mm)	35/64 (13.89mm)	1 (25.40mm)	1-1/32	1/2 (12.70mm)	2-1/2	2	–	51558
5/64 (1.98mm)	5/32 (3.97mm)	1/2 (12.70mm)	17/32 (13.49mm)	1/4 (6.35mm)	1-3/4	2	–	51540
5/64 (1.98mm)	5/32 (3.97mm)	1/2 (12.70mm)	17/32 (13.49mm)	1/2 (12.70mm)	2 (50.80mm)	2	–	51550
1/16 (1.59mm)	1/8 (3.18mm)	1/2 (12.70mm)	5/8 (15.88mm)	1/4 (6.35mm)	2-1/8	2	47706	51565
9/64 (3.57mm)	9/32 (7.14mm)	3/4 (19.05mm)	21/32 (16.67mm)	1/4 (6.35mm)	1-7/8	2	–	51544
3/32 (2.38mm)	3/16 (4.76mm)	21/32 (16.67mm)	21/32 (16.67mm)	1/2 (12.70mm)	2 (50.80mm)	2	–	51551
9/64 (3.57mm)	9/32 (7.14mm)	3/4 (19.05mm)	21/32 (16.67mm)	1/2 (12.70mm)	2-1/4	2	–	51554
3/32 (2.38mm)	3/16 (4.76mm)	1/2 (12.70mm)	11/16 (17.46mm)	1/4 (6.35mm)	2-1/8	2	47706	51567
1/8 (3.18mm)	1/4 (6.35mm)	9/16 (14.29mm)	23/32 (18.26mm)	1/4 (6.35mm)	1-11/16	2	–	51543
1/8 (3.18mm)	1/4 (6.35mm)	9/16 (14.29mm)	23/32 (18.26mm)	1/2 (12.70mm)	2-1/16	2	–	51553
1/8 (3.18mm)	1/4 (6.35mm)	3/4 (19.05mm)	3/4 (19.05mm)	1/4 (6.35mm)	2-3/8	2	47706	51568
7/64 (2.78mm)	15/64 (5.95mm)	3/4 (19.05mm)	55/64 (21.83mm)	1/2 (12.70mm)	2-23/64	2	–	51552
3/16 (4.76mm)	3/8 (9.53mm)	7/8 (22.23mm)	7/8 (22.23mm)	1/4 (6.35mm)	2 (50.80mm)	2	–	51545
3/16 (4.76mm)	3/8 (9.53mm)	7/8 (22.23mm)	7/8 (22.23mm)	1/2 (12.70mm)	2-3/8	2	–	51555
13/64 (5.16mm)	27/64 (10.72mm)	3/4 (19.05mm)	7/8 (22.23mm)	1/2 (12.70mm)	2-1/4	2	–	51556
13/64 (5.16mm)	3/8 (9.53mm)	3/4 (19.05mm)	7/8 (22.23mm)	1/2 (12.70mm)	2-3/4	2	47706	51569
1/4 (6.35mm)	1/2 (12.70mm)	1 (25.40mm)	1-1/8	1/4 (6.35mm)	2-17/64	2	–	51547
5/16 (7.94mm)	5/8 (15.88mm)	1 (25.40mm)	1-1/8	1/2 (12.70mm)	2-1/2	2	–	51559
3/8 (9.53mm)	3/4 (19.05mm)	1-27/64	1-3/8	1/2 (12.70mm)	2-63/64	2	–	51560
3/8 (9.53mm)	3/4 (19.05mm)	1-5/16	1-3/8	1/2 (12.70mm)	3-1/4	2	47716	51572
5/8 (15.88mm)	1-1/4	2 (50.80mm)	2 (50.80mm)	1/2 (12.70mm)	3-1/2	2	–	51564
3/4 (19.05mm)	1-1/2	2 (50.80mm)	2-3/8	1/2 (12.70mm)	3-7/8	3	–	51566
7/16 (11.11mm)	7/8 (22.23mm)	1-1/2	1-1/2	1/2 (12.70mm)	3 (76.20mm)	2	–	51549
1/2 (12.70mm)	1 (25.40mm)	1-9/16	1-11/16	1/2 (12.70mm)	3-1/16	2	–	51562
9/16 (14.29mm)	1-1/8	1-1/2	1-13/16	1/2 (12.70mm)	3 (76.20mm)	2	–	51563
1/2 (12.70mm)	1 (25.40mm)	1-19/32	1-13/16	1/2 (12.70mm)	3-1/2	2	47714	51574

Weight	0.2 lbs

Brand

Amana Tool

Amana Tool® is an industry leader for over 40 years specializing in industrial quality solid carbide, insert carbide and carbide-tipped cutting tools for the woodworking, plastics, aluminum, composite and metal industry. They provide many solutions for manufacturers, fabricators, display and cabinet professionals as well as hobbyists. Amana Tool’s full line of industrial-quality cutting tools includes saw blades, router bits, shaper cutters, boring bits and much more.

Need This Tool Customized?

Every machining application is different. If this tool is close to what you need but not an exact fit, General Cutting Tools can help modify it for your specific job, machine, material, or production requirement.

We work with CNC shops, industrial manufacturers, tool rooms, and production facilities to provide tool modifications that improve fit, function, performance, and efficiency. Whether you need a small adjustment or a more specialized cutting tool solution, our team can review your requirements and recommend the best option.

Custom tool modifications can help reduce setup time, improve accuracy, extend tool life, solve clearance issues, and support more consistent production results.

Common Tool Customization Options

Diameter and OD Modifications

We can modify tool diameters to better match your application requirements, including cutting diameter changes, OD modifications, pilot diameter adjustments, step diameters, and shank diameter modifications.

Bore Modifications for Saw Blades

Custom saw blade bore modifications are available for hole diameter changes, pinholes, mounting holes, and keyway cutouts to help match your machine setup and cutting requirements.

Length Adjustments

Tools can be modified for specific reach, clearance, or setup needs. This may include overall length changes, flute length adjustments, reduced neck sections, extended reach designs, or shortened tools for improved rigidity.

Shank Modifications

Shank modifications can help ensure the tool fits properly in your holder, spindle, or machine setup. Common options include shank diameter changes, flats, Weldon flats, reduced shanks, and custom holding requirements.

Radius, Chamfer, and Corner Changes

We can customize corner radius, chamfer angles, edge breaks, and other profile details to meet part print requirements or improve cutting performance.

Step Tool Modifications

For applications that require multiple diameters or operations in a single tool, we can create or modify step tools to help reduce tool changes and improve production efficiency.

Flute and Cutting Edge Adjustments

Depending on the tool and application, flute length, cutting edge geometry, end cutting features, relief angles, and cutting edge shape may be modified to improve chip evacuation, cutting action, and tool performance.

Regrinding and Resharpening

Many cutting tools can be reground or resharpened to restore performance, extend tool life, and reduce replacement costs.

Custom Profiles and Special Forms

For unique part features, we can help provide special forms, custom profiles, custom radii, counterbores, countersinks, keyseat cutters, form tools, and other application-specific tooling solutions.

Material-Specific Tool Adjustments

We can help modify or recommend tooling based on the material being machined, including aluminum, brass, bronze, plastics, stainless steel, hardened steel, cast iron, composites, and other industrial materials.

Have a Drawing, Sample, or Part Print?

Send us your print, sketch, CAD file, photo, tool number, sample, or application details. For the fastest quote, include the material being cut, quantity needed, required dimensions, tolerances, and any machine or holder requirements.

Coating Options

Tool coatings can be selected or added to improve wear resistance, heat resistance, lubricity, and performance in specific materials such as steel, stainless steel, aluminum, cast iron, and high-temperature alloys.

Request a Custom Tool Modification

Need this tool changed for your application? Contact General Cutting Tools today to discuss your custom tooling needs. We can help you find the right solution for your machine, material, and production goals.