Best End Mill For 304 Stainless

Category: stainless 👁 230 👍 12 ★★★★☆4.4

For traditional roughing, a 4 or 5 flute end mill is recommended. 5 flute end mills will allow for higher feed rates than their 4 flute counterparts, but either style would work well for roughing applications. Below is an excellent example of traditional roughing in 17-4 Stainless Steel.

At any rate, what is the best stainless steel for machining?

Type 303 stainless steel is probably the easiest 300 series to machine. It is much easier to machine than 304. That makes grade 303 steel the first choice for fittings, gears, and fasteners where tight tolerances are a must. However, its relative weakness means it isn't used as often as grade 304 stainless steel.

Yet, can HSS cut stainless steel? Under certain conditions (e.g. type of stainless steel, point angle, spiral angle etc.) you can also use a TiAlN-coated HSS drill. There are some stainless steels that are easy to cut and can also be drilled with coated HSS drills.

Even more, what is the SFM for 304 stainless steel?

Solid Carbide High Performance End Mills

Materials Soft GradesSpeed S.F.M. Under 32 HRCMaterials Hard Grades
Austenic 200 Series, 302, 303, 304L, 316L100-350304, 310, 314, 316, 321, 330, 347, 348, 21-6-9
Martensitic 403, 410, 416100-250420, 430F, 440C, 446

Who makes the best end mills?

Top 10 End Mill Performance Brands

  • Harvey Tools.
  • Garr.
  • Onsrud.
  • Niagara.
  • OSG.
  • SGS.
  • YG-1.
  • Accupro.

BESTSELLER NO. 1 in 2021

Melin Tool CRPS Cobalt Steel Square Nose End Mill, Weldon Shank, Uncoated (Bright) Finish, Roughing Cut, Non-Center Cutting, 30 Deg Helix, 6 Flutes, 3" Overall Length, 1.5000" Cutting Diameter, 0.75" Shank Diameter

Melin Tool CRPS Cobalt Steel Square Nose End Mill, Weldon Shank, Uncoated (Bright) Finish, Roughing Cut, Non-Center Cutting, 30 Deg Helix, 6 Flutes, 3
  • Cobalt steel tools are similar to high-speed steel, but with more cobalt for improved performance when cutting harder metals such as stainless steel or nickel alloys
  • Uncoated tools feature just the base substrate without any additional treatment or coatings and are suitable for a wide range of applications
  • Weldon shanks feature a round shank with one of more flats machined into the side for easy indexing and alignment
  • A rough finish is produced which will require a finishing pass
  • Used in difficult and abrasive materials and tough alloy materials, such as stainless steel, nickel base alloy, brass, iron etc
BESTSELLER NO. 2 in 2021

1L 304 Stainless Steel Ball Grinding Jar Bowl Cup for Planetary Ball Mill

1L 304 Stainless Steel Ball Grinding Jar Bowl Cup for Planetary Ball Mill
  • 1. corrosion resistance has good stainless steel corrosion resistance and better intergranular corrosion resistance;
  • 2. resistance to grinding, good mechanical strength and ductility, high hardness, wear resistance and durability;
  • 3. high temperature limit can reach 600 degrees celsius;
  • 4. acid and alkali resistance to alkali solution and most organic acids and inorganic acids also have good corrosion resistance;
BESTSELLER NO. 3 in 2021

SPEED TIGER ISE Carbide Square End Mill - Micro Grain Carbide End Mill for Alloy Steels/Hardened Steels - 4 Flute - ISE1/2"4T - Made in Taiwan (1 Piece, 1/2")

SPEED TIGER ISE Carbide Square End Mill - Micro Grain Carbide End Mill for Alloy Steels/Hardened Steels - 4 Flute - ISE1/2
  • GENERAL APPLICATION CUTTER - Speed Tiger 600 Nano carbide tools excel at working carbon steels (~HB225), alloy steels (HB225~325), pre-hardened steels (up to HRC45), hardened Steels (HRC40~45), cast iron
  • HIGH PERFORMANCE FOR HARD MATERIALS - Cutter is made of Micro Grain Carbide that is very tough, resists wear and offers high cutting performance
  • AlTiBN COATING - Titanium aluminum boron nitride (AlTiBN) coating lubricates the end mill for stability at high temperature and superior wear resistance at high cutting speeds, offering better heat resistance than TiAlN, TiN or TiCN coatings
  • HIGH-QUALITY - Flutes ground by a world-class ISO-9001 Factory; Great performance at a competitive price.
  • BUY BULK AND SAVE - Search Amazon for B07QGRKHMH for a 5 pc bulk pack or contact Amazon seller for more info
BESTSELLER NO. 4 in 2021

Huanyu 1kg 304 Stainless Steel Grinding Balls for Lab Planetary Ball Mill (3mm)

Huanyu 1kg 304 Stainless Steel Grinding Balls for Lab Planetary Ball Mill (3mm)
  • Dimension:Dia 3mm.
  • In order to prevent excessive abrasion, the hardness of the grinding jars used and of the grinding balls must be higher than that of the material used. Normally, grinding jars and grinding balls of the same material should be chosen.
  • Highly polished, smooth, easy to clean, low abrasion to the equipment
  • High mechanical strength, good toughness, impact resistance, no broken beads
BESTSELLER NO. 5 in 2021

20 PC Titanium Nitride Coated End Mill Set - 4 & 2 Flute Tin End Mill for Milling Machines

20 PC Titanium Nitride Coated End Mill Set - 4 & 2 Flute Tin End Mill for Milling Machines
  • Includes both 10pc- 2 flute and 10pc - 4 flute end mills
  • Sizes: 3/16", 1/4", 5/16", 3/8", 7/16" (3/8" shank); 1/2", 9/16" (1/2" shank); 5/8", 11/16" (5/8" shank); 3/4"(3/4" shank)
  • Made of M2 titanium nitride-coated high speed steel Mill, Center cutting capabilities!
  • All in a custom wooden case - approx. dimension: 10-1/4''L x 3-1/4''W x 4-1/2''H
BESTSELLER NO. 6 in 2021

SpeTool 1/4 End Mill for Aluminum 3 Flutes CNC Spiral Router Bit for Aluminum Cut Non-Ferrous Metal Upcut 2.5 inches Long 5 Pieces

SpeTool 1/4 End Mill for Aluminum 3 Flutes CNC Spiral Router Bit for Aluminum Cut Non-Ferrous Metal Upcut 2.5 inches Long 5 Pieces
  • 【SPECIFICATIONS】End mills for aluminum with 1/4” shank, 1/4” cutting diameter, 3/4” cutting length and 2-1/2” total length, 3 flutes with flat top, 5 pieces included in the package.
  • 【HIGH PERFOMANCE】These end mills for aluminum are designed for perfect surface finish because of the effective chip removal. With the long service life they are suitable for side milling, end milling, finish machining, etc.
  • 【HIGH PRECISION】High precision grinding and polishing, high resistance to abrasion and temperature resistance, good rigidity, high durability and not easy to break.
  • 【ALUMINUM APPLICATIONS】Best for processing aluminum 6061,7075 etc. Also suitable for non-ferrous metal, plywood, OAK, MDF, and Any Hardwood Working.
  • 【WIDELY USED】These aluminum end mills suit for CNC routers, and Makita, Bosch, or any brands of plunge routers with 1/4" collet.
BESTSELLER NO. 7 in 2021

Accusize Industrial Tools Stadard Tooth M42 8% Cobalt Tialn Roughing End Mill, 1/2'' by 1/2'' by 1-1/4'' Flt Length, 1102-0012

Accusize Industrial Tools Stadard Tooth M42 8% Cobalt Tialn Roughing End Mill, 1/2'' by 1/2'' by 1-1/4'' Flt Length, 1102-0012
  • Diameter: 1/2'', Shank Diameter: 1/2'', Flute length: 1-1/4'', Overall Length: 3-1/4'', 4 Flute, Coarse Tooth
  • TiAlN Coated, Center cutting, M42-8% Premium cobalt, Flutes ground by a world-class IS-9002 Factory, CNC Qualified
  • Produces a smooth finish that often eliminates the need for a finishing cut for profiling and shallow slots.
  • Used for aggressive machining. Performance approaching solid carbide with tough H.S.S Tools. Recommended for abrasive materials.
  • Excellent performance in hard materials that are difficult to cut. Extremely hard, wear resistant.
BESTSELLER NO. 8 in 2021

8Pcs End Mill Bits HSS CNC End Mill Cutter Drill Bits for Wood, Aluminum, Steel, Titanium, Straight 4 Flute Mill Bit Set 1/16"-1/2" by Oudtinx

8Pcs End Mill Bits HSS CNC End Mill Cutter Drill Bits for Wood, Aluminum, Steel, Titanium, Straight 4 Flute Mill Bit Set 1/16
  • HIGH PROCESSING EFFICIENCY: the edge of end mill bits is HARD and SHARP, process the heat treatment materials under 32°with high speed, reduce changing times and improve the production efficiency.
  • CUTTING EDGE DESIGN: the bottom of end mill bits is u-shaped groove design, large front angle effectively reduces cutting resistance, sharp and durable, convenient for chip removal, further improve machining efficiency.
  • APPLICATION: end mill bits are suitable for side milling, end milling, finish machining, etc. Apply to carbon steel, alloy steel, die steel, tool steel, cast iron, titanium, aluminum, etc.
  • One Set of metric end mill bits Including: 8 Different kinds of Size end mills to meet your need, 2mm=1/16", 3mm=1/8", 4mm=5/32'', 5mm=3/16", 6mm=1/4", 8mm=5/16", 10mm=3/8", 12mm=1/2"
  • STRONG and DURABLE:The end mill bits are made from Ultra-fine steel bar, with high bending resistance and abrasion resistance, exclusive to HIGH HARDNESS, HIGH SPEED CUTTING applications.
BESTSELLER NO. 9 in 2021

SpeTool 1/8 End Mills for Aluminum 1/16 Cutting Diameter 3 Flutes CNC Spiral Router Bits for Aluminum Cut Non-Ferrous Metal Upcut 1.5 inches Long 5 Pieces

SpeTool 1/8 End Mills for Aluminum 1/16 Cutting Diameter 3 Flutes CNC Spiral Router Bits for Aluminum Cut Non-Ferrous Metal Upcut 1.5 inches Long 5 Pieces
  • 【SPECIFICATIONS】End mills for aluminum with 1/8” shank, 1/16” cutting diameter, 3/16” cutting length and 1-1/2” total length, 3 flutes with flat top, 5 pieces included in the package.
  • 【HIGH PERFOMANCE】These end mills for aluminum are designed for perfect surface finish because of the effective chip removal. With the long service life they are suitable for side milling, end milling, finish machining, etc.
  • 【HIGH PRECISION】High precision grinding and polishing, high resistance to abrasion and temperature resistance, good rigidity, high durability and not easy to break.
  • 【ALUMINUM APPLICATIONS】Best for processing aluminum 6061,7075 etc. Also suitable for non-ferrous metal, plywood, OAK, MDF, and Any Hardwood Working.
  • 【WIDELY USED】These aluminum end mills suit for CNC routers, and Makita, Bosch, or any brands of plunge routers with 1/8" collet.
BESTSELLER NO. 10 in 2021

5Pcs End Mill Set, Yosoo HSS CNC 1/8'' End Mill Cutter Drill Bits 1/4'' Shank for Wood, Nylon, Aluminum, Steel,Titanium, 4 Flute Straight End Mill Set 1/8'' - 1/4''

5Pcs End Mill Set, Yosoo HSS CNC 1/8'' End Mill Cutter Drill Bits 1/4'' Shank for Wood, Nylon, Aluminum, Steel,Titanium, 4 Flute Straight End Mill Set 1/8'' - 1/4''
  • 【HEAVY DUTY & SOLID CONSTRUCTION】Made of ultra-fine grain carbide, ensuring high work efficiency with good milling, cutting performance.
  • 【HIGH EFFICIENCY】These Engraving bits have sufficient flexural strength and high abrasion resistance, obtain accuracy and fine finish With sharp edge, which is able for fast engraving that makes high efficiency.
  • 【SIZE】Cutting Diameter:1/8''; Cutting Depth:12mm/4.72in; Shank Diameter:1/4''.
  • 【WIDE APPLICATION】A Wide Range of Materials can be engraved, including: Hardness of metal for above 30 degrees, hardwood, medium density board, Nylon, Resin, ABS, Acrylic, PVC, MDF, etc.
  • 【SATISFACTION GUARANBTEE】We're not happy unless you're happy...really! If for any reason you're not fully satisfied with our products, please send it back for a 100% refund no questions asked. We do our best to make it right.

14 More Questions Answered

How do I choose an end mill?

Length of Cut & Reach The length of cut needed for any end mill should be dictated by the longest contact length during an operation. This should be only as long as needed, and no longer. Selecting the shortest tool possible will result in minimized overhang, a more rigid setup, and reduced chatter.

How can I tell if my stainless steel is 304 or 316?

You can't tell just by looking at it. There's no visible difference between two identical pieces of sheet metal, a polished or grained the exact same way. That's why you need a material test report (MTR) of the actual material to validate it as being 304 or 316.

Which is better SS 304 or 316?

Most stainless steel ordered around the world is Grade 304. It offers the standard corrosion resistance, formability, strength, and easy maintenance for which stainless is known. While 316 comes in second in terms of quantities sold, it offers vastly superior corrosion resistance to chlorides and acids.

Is 304 or 430 stainless better?

When it comes to stainless steel, the lower the grade the better. The most common and expensive grade of steel is Type 304, which contains approximately 18 percent chromium and 8 percent nickel. ... That's why the Type 304 stainless steel gas grills are more durable and can withstand heat better than the Type 430.

What is the best cutting fluid for stainless steel?

For the type of cutting fluids, vegetable oils are common cutting fluids used in MQL because of its superior lubrication and high-pressure performance. This study evaluates the performance of MQL using castor oil as cutting fluid. The workpiece is hardened stainless steel 48 HRC. Results are compared with dry cutting.

Which is better HSS or carbide?

Carbide steel has more high cutting speed and is 4- 7 times higher than high – speed steel. Carbide is much harder, so it has a longer tool life and faster cutting data than conventional high speed steel. HSS tools also cost less than Carbide tools and are often a good solution in high-mix, low-volume applications.

Is stainless harder than steel?

stainless steel because they are different. Let's see why. Steel is an alloy made out of iron and carbon. ... Stainless steel has a low carbon content which cannot be hardened, and regular steel is slightly stronger than grade 2 steel, and at the same time it is significantly weaker if compared in the terms of hardness.

Can you mill stainless steel?

Material classification: P5. Ferritic stainless steel have a machinability that is comparable to low-alloyed steel, and therefore, the recommendations for steel milling can be used. Martensitic stainless steel has a higher work-hardening property and exerts very high cutting forces when entering the cut.

What is the cutting speed for stainless steel?

Cutting speeds for various materials using a plain high speed steel cutterMaterial typeMeters per min (MPM)Surface feet per min (SFM)
Carbon Steels (C1008–C1095)4–510–70
Free Cutting Steels (B1111–B1113 & C1108–C1213)35–69115–225
Stainless Steels (300 & 400 series)23–4030–75
Bronzes24–4510–80

How is IPM calculated?

To calculate feed in ipm, the formula is: Feed in ipm = RPM x ipr. Ipr is inches per revolution, and is also found in the manufacturers catalog.

What is the best type of end mill for aluminum?

For aluminum milling a two- or three-flute end mill works best because this allows for larger flute areas. A core diameter of slightly less than 50 percent of cutter diameter is optimum for the same reason.

Who makes Accupro end mills?

Brands - Accupro - Penn Tool Co., Inc.

Can you drill with end mill?

If you're making a very small hole, say, less than 1.5mm in diameter, go with a drill. End mills under 1.5mm become increasingly fragile, and subsequently cannot be run as aggressively, as a drill can be. If you need to make a very deep hole – in excess of 4x your hole diameter, choose the drill.

What is a 4 flute end mill used for?

Traditionally, end mills came in either a 2 flute or 4 flute option. The widely accepted rule of thumb was to use 2 flutes for machining aluminum and non-ferrous materials, and 4 flutes for machining steel and harder alloys.