Sutton B308 Cone Shape Carbide Burr, 6 x 25.4mm, 6mm Shank, Double Cut
Available
The Sutton B308 is a double cut, cone shape carbide burr with a solid carbide (VHM) head and bright finish, supplied with a 6 mm shank.
The double cut (chisel tooth) pattern is for rapid stock removal in the harder materials. The chisel tooth pattern is designed to minimise tool chatter and reduce the chip to a granular shape in most materials.
This listing covers 4 sizes, with head diameters from 6 to 15.9 mm and overall lengths of 51 to 73 mm, all on a 6 mm shank. Dimensions are as published in Sutton's catalogue.
Fit it to a die grinder or other high-speed rotary tool with a collet that matches the shank, and keep to the recommended speeds for the head diameter shown below.
Where this burr is used
- Chamfering and countersinking edges
- Deburring hole edges and chamfers
- Grinding angled surfaces and Vee grooves
- Steel and stainless steel: recommended speeds are given below for steels and alloys and for stainless steel
- Weld cleanup, deburring and shaping in fabrication, toolroom, foundry, engineering workshop and maintenance (MRO) work
Design features
- Double cut (chisel tooth) pattern: for rapid stock removal in the harder materials, with minimal tool chatter and a granular chip in most materials
- Solid carbide (VHM): VHM construction is designed to give optimum strength, hardness and wear resistance
- Bright finish
- Head profile: cone with a pointed end, widest at the shank end
- Shank: 6 mm, fits 6 mm die grinder collets
Sizes
Dimensions: d1 is the head diameter, l2 the cut length, l1 the overall length and d2 the shank diameter, with the angle where the catalogue gives one.
| Item no. | Head diameter d1 (mm) | Cut length l2 (mm) | Overall length l1 (mm) | Shank d2 (mm) | Angle |
|---|---|---|---|---|---|
| B308SM300 | 6 | 25.4 | 51 | 6 | 12° |
| B308SM400 | 9.5 | 19.1 | 64 | 6 | 28° |
| B308SM500 | 12.7 | 25.4 | 70 | 6 | 28° |
| B308SM600 | 15.9 | 28.6 | 73 | 6 | 31° |
Recommended cutting speeds
Recommended speeds by head diameter, from Sutton's cutting speed guide for standard length burrs.
| Head diameter | Steels and alloys (RPM) | Stainless steel (RPM) | Maximum (RPM) |
|---|---|---|---|
| 1/4" (6.35 mm) | 15,000 | 22,000 | 33,000 |
| 3/8" (9.5 mm) | 12,000 | 18,000 | 27,000 |
| 1/2" (12.7 mm) | 11,000 | 16,000 | 24,000 |
| 5/8" (15.9 mm) | 10,000 | 15,000 | 23,000 |
Key specifications
| Specification | Detail |
|---|---|
| Brand | Sutton |
| Catalogue code | B308 |
| Head shape | Cone Shape |
| Cut | Double Cut |
| Material | Solid carbide (VHM) |
| Finish | Bright |
| Shank | 6 mm |
| Head diameter | 6 mm to 15.9 mm |
| Overall length | 51 mm to 73 mm |
| System of measurement | Metric |
| Angle | 12° to 31° |
| Sizes in this listing | 4 |
Related Sutton carbide burrs
Compare other shapes and lengths in this range: B208 cone shape carbide burrs (double cut), B900SCB100 carbide burr set (5 piece), B900SCB300 carbide burr set (5 piece).
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Sutton B308 Carbide Burr - Cone Shape - Double Cut: 6
SKU: A0002593 | Model: B308SM300
This is the 6mm burr diameter option of the Sutton B308 Carbide Burr - Cone Shape - Double Cut. Key details for this option: cut type Double Cut for Steel, material Carbide (VHM), burr length 25.4mm, overall length 51mm.
Features
Cone Shape Carbide Burs
The chisel tooth pattern not only minimizes tool chatter but reduces the chip to a granular shape, in most materials
Al Cut for rapid material removal of soft materials such as: Aluminum, Brass, Copper, Plastics that would normally load other cuts
Applications
Steel - Non-alloy, cast & free cutting (~ 0.15 %C): Annealed
Steel - Non-alloy, cast & free cutting (~ 0.45 %C): Annealed
Steel - Non-alloy, cast & free cutting (~ 0.45 %C): Quenched & Tempered
Steel - Non-alloy, cast & free cutting (~ 0.75 %C): Annealed
Steel - Low alloy & cast < 5% of alloying elements: Annealed
Steel - Low alloy & cast < 5% of alloying elements: Quenched & Tempered
Stainless Steel - Austenitic: Age Hardened
Cast Iron, Grey (GG) - Ferritic / Pearlitic
Cast Iron, Nodular (GGG) – Ferritic
Cast Iron, Malleable – Ferritic
Cast Iron, Malleable - Pearlitic