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Product Specifications:
| Item | Bur |
| Abrading Application | Metalworking, Narrow Contouring, Narrow Surfaces, Surface Milling |
| Coating | Bright Uncoated |
| Cut Type | Single |
| Cutting Length | 1/2" |
| End Type | Radius |
| Head Dia. | 1/8" |
| Head Length | 1/2" |
| Head Material | Carbide |
| Head Material Grade | Grade C2 Submicron |
| Head Shape | Cone |
| Included Angle | 14° |
| List Number | 310L |
| Material Application | Brass, Bronze, Carbon Steel, Cast Iron, Copper, Nickel, Stainless Steel, Steel, Titanium |
| Material Category Application | Brass, Bronze, Cast Iron, Copper, Stainless Steel, Steel, Titanium |
| Max. Speed | 90000 RPM |
| Overall Length | 3" |
| Primary Material Application | Brass, Bronze, Carbon Steel, Cast Iron, Copper, Stainless Steel, Steel, Titanium |
| Shank Dia. | 1/8" |
| Shank Material | Carbide |
| System Of Measurement | Imperial |
| Trade Number | SL-42L3 |
Shipping Info:
| Ship weight (kg) | 0.45 |
| Ship height (cm) | 2.54 |
| Ship length (cm) | 2.54 |
| Ship width (cm) | 2.54 |
Product Variants
| Product | Model | End Type | Cut Type | Trade Number | Cutting Length | Head Dia. | Head Material Grade | Max. Speed | Head Shape | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
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310-002517 | Radius | Aluminum | SL-6NF | 1.312" | 1/2" | Grade C2 Submicron | 50000 RPM | Cone | €170.72 | |
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310-004303 | Radius | Aluminum | SL-7NF | 1 1/2" | 3/4" | Grade C2 Submicron | 35000 RPM | Cone | €197.47 | |
![]() |
310-002516 | Radius | Aluminum | SL-4NF | 1 1/8" | 3/8" | Grade C2 Submicron | 60000 RPM | Cone | €89.47 | |
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310-003007 | Radius | Aluminum | SL-5NF | 1.188" | 5/8" | Grade C2 Submicron | 50000 RPM | Cone | €141.41 | |
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310-002187 | Radius | Double Cut | SL-4 | 1 1/8" | 1/2" | Grade C2 Submicron | 50000 RPM | Cone | €51.89 | |
![]() |
310-002187B | Radius | Double Cut | SL-4L6 | 1 1/8" | 1/2" | Grade C2 Submicron | 50000 RPM | Cone | €95.90 | |
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310-002184 | Radius | Double Cut | SL-1 | 5/8" | 1/4" | Grade C2 Submicron | 65000 RPM | Cone | €28.67 |
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Contact us
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We're available Monday through Friday, from 07:30 until 17:00.
GRAINGER 310-002640 Cone Bur, Single Cut, 1/8 Inch Shank, 1/8 Inch Head, Lg Of Cut 1/2 Inch, Sl-42L3
€19.33 /unit



