Frequently Asked Questions
What are your lead times for custom size hex and square form broaches?
We stock .315 & .500 shank broach blanks ready to grind to your custom size with standard tolerance of +/-.0002.
1-10 Pcs: 1-3 Days Lead Time
11-25 Pcs: 4-7 Days Lead Time
26 -50 Pcs: 2 Week Lead Time
100+ Pcs: 3 Week Lead Time
How are Rayco broaches unique?
Undoubtably, it would be our proprietary heat treat process. This process dates back to 1947, and is still a company secret.
The Rayco Process of heat treating HSS starts with mill annealed steel and hardens uniformly through the steel. An unusually fine, tough grain structure is obtained at high hardness. The transformation of retained austenite to finely tempered martinsite, is accomplished much more easily and at a higher percentage than conventional heat treated HSS. This also yields a much finer grained structure, where grain growth is not a issue at high hardness R/C 66-69. This fine grain structure can be approached in conventional heat treating only by holding the hardness very low (around 62 Hrc in most HSS) which naturally lowers wear resistant properties. Rayco Processing brings out the most superior wear resistance and toughness in any HSS.
Do you do custom orders?
Absolutely! The majority of the broach tools we make are custom sizes. We do not charge extra for custom sizes. Just contact us for a custom quote.
Where are your products produced?
All of our products are sourced and manufactured in USA. We are located in Warsaw, IN, the Orthopedic capital of the world.
Will your broaches fit in my holder?
Yes. We make 8mm broaches in 1.1’’ and 1.25’’ OAL to fit the industry’s most popular brand of holders. As for 1/2’’ Shank broaches, the OAL would be 1.75’’
Why is HSS the best material choice for rotary, push, or shave broaching, and not carbide?
We run across this question often from potential customers, especially when trying to rotary broach in a tough medical grade alloy above 30 Hrc such as Custom 455, 17-4 H900, Titanium, or BioDur materials. Finding a Broach tool with perfect blend of wear resistance and toughness is key. Carbide has greater wear resistance than HSS or HiCo HSS, but has much less toughness. Carbide is great for turning and milling operations and can hold it’s hardness when high heat is involved because of its high Cobalt content. In Rotary and Push broaching operations there is very little heat generated, so there is no benefit for a broach with HiCo content. HSS’s toughness comes into play in rotary and punch style broaching. These operations cause Carbide to chip or micro chip, yielding poor tool life. Micro chipping can often look like premature tool wear, but is actually many tiny chips.
This is where applying the Rayco Heat Treat Process to HSS can bridge this gap