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Product Specifications:
| Item | Chucking Reamer |
| Application | Through Hole |
| Chamfer Angle | 45° |
| Coolant Fed | Non Coolant Through |
| Coolant Through | No |
| Cutting Dia. Tolerance | -0.0127" to +0.0025" |
| Cutting Direction | Right Hand |
| Cutting Direction - Machining | Right Hand |
| Decimal Equivalent | 0.3906 |
| Dimension Type | Fractional Inch |
| Finish | Bright, Uncoated |
| Flute Length | 1 1/4" |
| Flute Type | Straight |
| List Number | 300D |
| Material | Carbide |
| Material Application | Cast Iron, Heat-Resistant Alloys, Stainless Steel, Titanium |
| Number Of Flutes | 6 |
| Overall Length | 3 1/2" |
| Primary Material Application | Aluminum, Cast Iron, Stainless Steel, Steel |
| Primary Material Application Iso Code | K, M, N, P |
| Reamer Application | Through Hole |
| Reamer Size | 25/64" |
| Shank Dia. | 3/8" |
| Shank Type | Straight |
| Size - Decimal | 25/64" |
| Spiral Direction | Neutral |
| System Of Measurement | Fractional Inch |
Shipping Info:
| Ship weight (kg) | 0.05 |
| Ship height (cm) | 2.54 |
| Ship length (cm) | 2.54 |
| Ship width (cm) | 2.54 |
Product Variants
| Product | Model | Overall Length | Decimal Equivalent | Flute Length | Number Of Flutes | Spiral Direction | Reamer Size | Cutting Dia. Tolerance | Dimension Type | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
![]() |
300-2280 | 3" | 0.228 | 1" | 4 | Neutral | #1 | -0.0102" to +0.0025" | - | €81.61 | |
![]() |
257-1935 | 4" | 0.1935 | 1 29/32" | 2 | Neutral | #10 | 0" to 0.0005" | - | €163.48 | |
![]() |
300-1935 | 2 3/4" | 0.1935 | 7/8" | 4 | Neutral | #10 | -0.0102" to +0.0025" | - | €70.26 | |
![]() |
257-1910 | 3" | 0.191 | 1 7/8" | - | Neutral | #11 | 0" to 0.0005" | - | €131.68 | |
![]() |
257-1916 | 4" | 0.191 | 1 7/8" | 2 | Neutral | #11 | 0" to 0.0005" | - | €162.47 | |
![]() |
300-1910 | 2 3/4" | 0.191 | 7/8" | 4 | Neutral | #11 | -0.0102" to +0.0025" | - | €70.26 | |
![]() |
300-1890 | 2 3/4" | 0.189 | 7/8" | 4 | Neutral | #12 | -0.0102" to +0.0025" | - | €70.70 |
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Contact us
Contact your account manager right away to get personal advice.
We're available Monday through Friday, from 07:30 until 17:00.
OSG 300-3906 Chucking Reamer, 25/64 Inch Reamer Size, 1 1/4 Inch Flute Length, 3 1/2 Inch Length
€152.59 /unit



