Sutton B209 Inverted Cone Shape Carbide Burr, 5/8" x 3/4", 1/4" Shank, Double Cut
Available
The Sutton B209 is a double cut, inverted cone shape carbide burr with a solid carbide (VHM) head and bright finish, supplied with 1/4" (6.35 mm) shanks on 5 sizes and 1/8" (3.2 mm) shanks on the 2 smallest.
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 7 sizes, with head diameters from 1/8" (3.2 mm) to 3/4" (19.1 mm) and overall lengths of 1-1/2" (38.1 mm) to 2-5/8" (66.7 mm). 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
- Back-chamfering and undercutting, where the larger end of the cone is at the tip, away from the shank
- Deburring the back edge of holes and slots
- Relief and dovetail cuts, and finishing into corners
- 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: inverted cone, widest at the tip
- Shank sizes: 1/4" (6.35 mm) on 5 sizes, 1/8" (3.2 mm) on the 2 smaller sizes
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. Imperial sizes are shown with the metric equivalent in brackets.
| Item no. | Head diameter d1 | Cut length l2 | Overall length l1 | Shank d2 | Angle |
|---|---|---|---|---|---|
| B209SN420 | 1/8" (3.2 mm) | 1/8" (3.2 mm) | 1-1/2" (38.1 mm) | 1/8" (3.2 mm) | 14° |
| B209SN510 | 1/4" (6.35 mm) | 1/4" (6.35 mm) | 1-3/4" (44.5 mm) | 1/8" (3.2 mm) | 10° |
| B209SN100 | 1/4" (6.35 mm) | 1/4" (6.35 mm) | 2" (50.8 mm) | 1/4" (6.35 mm) | 10° |
| B209SN200 | 3/8" (9.5 mm) | 3/8" (9.5 mm) | 2-1/8" (54 mm) | 1/4" (6.35 mm) | 13° |
| B209SN400 | 1/2" (12.7 mm) | 1/2" (12.7 mm) | 2-1/2" (63.5 mm) | 1/4" (6.35 mm) | 28° |
| B209SN600 | 5/8" (15.9 mm) | 3/4" (19.1 mm) | 2-1/2" (63.5 mm) | 1/4" (6.35 mm) | 18° |
| B209SN700 | 3/4" (19.1 mm) | 5/8" (15.9 mm) | 2-5/8" (66.7 mm) | 1/4" (6.35 mm) | 30° |
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) |
|---|---|---|---|
| 1/8" (3.2 mm) | 23,000 | 35,000 | 53,000 |
| 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 |
| 3/4" (19.1 mm) | 9,000 | 14,000 | 21,000 |
Key specifications
| Specification | Detail |
|---|---|
| Brand | Sutton |
| Catalogue code | B209 |
| Head shape | Inverted Cone Shape |
| Cut | Double Cut |
| Material | Solid carbide (VHM) |
| Finish | Bright |
| Shank | 1/4" (6.35 mm) on 5 sizes, 1/8" (3.2 mm) on 2 sizes |
| Head diameter | 1/8" to 3/4" |
| Overall length | 1-1/2" to 2-5/8" |
| System of measurement | Imperial |
| Angle | 10° to 30° |
| Sizes in this listing | 7 |
Related Sutton carbide burrs
Compare other shapes and lengths in this range: B900SCB100 carbide burr set (5 piece), B900SCB300 carbide burr set (5 piece).
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1/8 / 1/8
Model Number: B209SN420
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1/8 / 1/4
Model Number: B209SN510
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1/4 / 1/4
Model Number: B209SN100
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1/4 / 3/8
Model Number: B209SN200
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1/4 / 1/2
Model Number: B209SN400
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1/4 / 5/8
Model Number: B209SN600
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1/4 / 3/4
Model Number: B209SN700
