Just like shaping several teeth, the broaching process is instrumental when it comes to machining internal and external surfaces like holes of spherical, square, or uneven shapes, teeth and keyways of internal gears. A broach is a lengthy multi-tooth cutting tool that has consecutively deeper cuts. Every tool takes out a fixed amount of material in a fixed location. The total deepness of material eliminated in a single path is the summation of the cut depth of every tooth. Broaching is a massively popular industrial process due to its capability to generate parts with the excellent surface finish and unparalleled dimensional accuracy.
Tooling is an integral part of any broaching process. Manufacturers rely on a concept exclusive to the broaching process whereby irregular, partial finish and complete finish cutting teeth are pooled into one tool or series of tools. Usually, a broach tool can finish machine a crooked surface in just one stroke. Here is a review of 10 outstanding push broaches in 2021.
- Table of the Best Push Broaches:
- 01. Hassay Savage 6 MM Keyway Push Broach
- 02. Hassay Savage 10 mm Keyway Push Broach
- 03. HHIP 3/16-inch Keyway Broach
- 04. Accusize Keyway Broach Precision
- 05. HHIP 5/16-Inc Keyway Broach
- 06. HHIP 1/4 –Inch Square Push Broach
- 07. HHIP 3/8 Inch Square Push Broach
- 08. Hassay Savage 4 mm Keyway Broach
- 09. Hassay Savage 5 mm Keyway Push Broach
- 10. HHIP ½ Inch Square Push Broach
- Types of Broaches
Table of the Best Push Broaches:
01. Hassay Savage 6 MM Keyway Push Broach
This cutting-edge push broach needs a pushing action to create a keyway-shaped hole in an element and adheres to the ISO J-9 specifications. It is constructed with M-2 high-speed steel that gives it a perfect balance of strength and sturdiness. The well-positioned teeth offer effective broaching of mild steel.
- Keyway broach cuts a keyway-shaped hole by pushing through the material
- The M-2 high-speed steel creates a tactical balance of strength and robustness
- Accurate tooth rake together with relief angles offer steadfast mild steel broaching
- Adheres to ISO J-9 specifications
02. Hassay Savage 10 mm Keyway Push Broach
This keyway push broach relies on pushing action to produce a keyway-shaped hole in internal and external surfaces. It derives its strength and resiliency from the M-2 high-speed steel, which is used in its construction. This product features two shims that you can use to modify the depth of the cut. The teeth’s rake combined with relief angles ensure seamless broaching of mild steel.
- The keyway broach generate a keyway-shaped hole after forcing its way into the material
- Strong and sturdy, thanks to the M-2 high-speed steel
- Efficient steel broaching, courtesy of clear-cut tooth rake plus relief slants
- Abides by ISO J-9 specifications
03. HHIP 3/16-inch Keyway Broach
This excellent keyway broach is sharp and ground with light finishing. One shim for adjusting deepness of the cut included. The minimum length of the cut is 19/64 while the maximum cut length is 1-11/16. This broach is made of heavy-duty, high-speed steel.
- Comes with one shim
- Made of high-speed-steel (hss)
- High quality
- Easy to operate
04. Accusize Keyway Broach Precision
At only $88, you can get this efficient keyway broach. This product is robust, thanks to the high-speed steel utilized in its manufacture.
- Easy to use
- Accurately makes keyway-shaped holes
05. HHIP 5/16-Inc Keyway Broach
This special broach features a bright finishing. It comes with a sturdy shim that allows you to fine-tune depth of the cut. It retains its sharpness for a long duration. Despite being inexpensive, this broach doesn’t compromise on strength and robustness. The minimum length cut of this tool is 25/64 inches, and the maximum length is somewhere between 2 to ½ inches.
- Resilient shim included
- Made of steel
06. HHIP 1/4 –Inch Square Push Broach
This tapered broach is used for creating square-shaped holes in curvy pilot holes. It functions well when machine-finishing ferrous as well as non-ferrous components. It has a bright finishing, and manufacturers use high-speed-steel to build it. The cut length ranges from ¼ to ¾ inches.
- Functions well
- Solid steel construction
- Depends on push action to operate
07. HHIP 3/8 Inch Square Push Broach
With HHIP 3/8” Broach, you can cut a square-shaped hole in rounded pilot holes. The sharp end makes this unique broach the best choice for cutting holes in ferrous and non-ferrous gears. The cut extends to a minimum of 3/8 inches and a maximum of 1 inch.
- Sharp broach
- Cuts square shaped holes
- Tough high-speed steel
08. Hassay Savage 4 mm Keyway Broach
Hassay Savage 4 mm broach forms a keyway-shaped hole in a material after application of pushing action. It abides by the strict ISO J-9 specifications. It majorly consists of M-2 high-speed steel that makes it not only strong but also tough. The teeth are positioned in strategic angles to broach the mild steel effectively. The one shim packaged in this product will help you alter the cut depth.
- Pushing action needed to cut a keyway-shaped hole
- Abides by ISO J-9 specifications
- Created using M-2 High-speed steel
- Comes with a shim
09. Hassay Savage 5 mm Keyway Push Broach
This ISO-approved push broach depends on a pushing action to make a keyway-shaped hole in a material. It derives its strength and resilience from the M-2 high-speed steel, which is utilized in its construction. One shim for adjusting the cut deepness is included in the package.
- ISO J-9 certified
- Strong and long-lasting
- Built with M-2 high-speed steel
- Function well with manufacturer’s allied bushing as well as with shim style II
10. HHIP ½ Inch Square Push Broach
This push broach is effective when it comes to making a square-shaped hole in smooth-edged pilot holes. If you are working with ferrous and non-ferrous surfaces, this square push broach will deliver exceptional results.
- Cuts square-shaped holes
- Tough high-speed steel used
- High level of tolerance
- High quality
Types of Broaches
Broaches falls into main groups: the pull broach and the push broach. A second category consists of external and internal broaches.
- Pull and Push Broaches: Pull broaches are drawn up, downward, or horizontally across or through the workpiece usually by a machine. Pull type broaches may be flat or almost flat or a workpiece may be tightly attached to the broach and then dragged through the broaching teeth. Push broaches are usually short because they are a column in compression and tend to break when subjected to heavy loads. If amounts of work are low, push broaches should be used with a slight arbor press.
- Internal Broaches: These types of broaches are either pushed or pulled across a starter hole. The broaching machines used to pull or push internal broaches include horizontal pull types, simple presses, and entirely automated multi-stationed verticals.
- Keyway Broach: This broach has gained widespread popularity due to their efficiency in cutting keyway-shaped holes in machine tools and components. This broach can cut both internal and external keyways.
- Burnishers: These are special tools created to polish instead of cut a hole. A burnishing operation causes a change in diameter that ranges from 0.0005 inches to 0.001 inches.
- Shell Broaches: These broaches are perfect for roughing, partial finishing, and finishing parts of a broach tool. With a shell broach, you can have worn sections detached and re-sharpened or replaced at a lower cost compared to the traditional single piece tool.
- Surface Broaches: They are ideal for removing material from an outer surface.
When choosing the best broach tool, it is wise to consider the shape of the component you want to cut and the materials used to make it. The hardness of the component before broaching is another crucial consideration. By considering these parameters, you can choose a high-quality and heavy-duty broach tool that will have a longer lifespan.