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Product Specifications:
| Item | Straight Flute Tap |
| 55% Thread Drill Size | 5.7 mm |
| 65% Thread Drill Size | 7/32" |
| 75% Thread Drill Size | 5.45 mm |
| Clamping Width | 0.217" |
| Class Of Fit | Class 2B |
| Connection Dia. | 0.276" |
| Coolant Fed | Non Coolant Through |
| Driving Square Length | 0.315" |
| Extended Neck | Yes |
| Functional Length | 3.15" |
| Measurement System | Fractional Inch |
| No. Of Flutes | 3 |
| No. Of Grooves | 3 |
| Overall Length | 3 1/8" |
| Primary Material Application | Aluminum, Brass, Bronze, Composite, Copper |
| Primary Material Application Iso Code | N, O |
| Secondary Material Application | Cast Iron, Hardened Steel, Nickel, Titanium |
| Secondary Material Application Iso Code | H, K, S |
| Shank Dia. | 17/64" |
| Shank Length | 7/8" |
| Shank Type-machining | Straight |
| Spiral Direction | Neutral |
| Square Size | 0.217" |
| System Of Measurement | Imperial |
| Tap Chamfer | Modified Bottoming, Semi Bottoming |
| Tap Finish | TiCN |
| Tap Length Standard | DIN 2184-1 |
| Tap Material | High Speed Steel |
| Tap Shank Standard | DIN 2184-1 |
| Tap Style | Straight Flute Hand |
| Thread Direction | Right Hand |
| Thread Length | 3/4" |
| Thread Limit | H3, H4 |
| Thread Limit/class Of Fit | H3, 2B, H4, 2B |
| Thread Size | 1/4"-28 |
| Thread Standard | Fine |
| Thread Type | UNF |
| Threads Per Inch | 28 |
| Usable Length | 2.244" |
Shipping Info:
| Ship weight (kg) | 0.02 |
| Ship height (cm) | 2.54 |
| Ship length (cm) | 7.94 |
| Ship width (cm) | 2.54 |
| Country of Origin | DE |
Product Variants
| Product | Model | Thread Standard | Shank Dia. | Functional Length | Connection Dia. | Usable Length | Clamping Width | Driving Square Length | Thread Length | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
![]() |
8231106-UNC10 | Coarse | 6 mm | 2.756" | 0.236" | 0.63" | 0.193" | 0.315" | 16 mm | €481.93 | |
![]() |
8331106-UNF10 | Fine | 6 mm | 2.756" | 0.236" | 1.85" | 0.193" | 0.315" | 16 mm | €481.93 | |
![]() |
8231106-UNC1/4 | Coarse | 7 mm | 3.15" | 0.276" | 0.787" | 0.217" | 0.315" | 20 mm | €638.58 | |
![]() |
8231106-UNC3/8 | Coarse | 10 mm | 3.937" | 0.394" | 1.181" | 0.315" | 0.433" | 30 mm | €1,022.98 | |
![]() |
8331106-UNF3/8 | Fine | 25/64" | 3.543" | 0.394" | 2.441" | 0.315" | 0.433" | 1 1/8" | €1,022.98 | |
![]() |
8231106-UNC5/16 | Coarse | - | 3.543" | 0.315" | 0.984" | 0.244" | 0.354" | 25 mm | €781.35 | |
![]() |
8136417-M10X1 | Metric Fine | 7 mm | 3.543" | 0.276" | 2.638" | 0.217" | 0.315" | 14 mm | €1,071.61 |
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WALTER TOOLS 8331106-UNF1/4 5079828 Straight Flute Tap, 1/4-28 Thread Size, 3/4 Inch Thread Length, 3 1/8 Inch Length
€638.58 /unit


