1/4"-20 UNC HSS-E Spiral Flute Tap, 0.255" Shank x 0.433" Thread Length, 2.5XD, Mod. Bottoming, 2 Flute, GH3, Uncoated
Part # 03-01851/4-20 SP FL ALUMINUM TAP
* All prices and specifications subject to change without notice. Actual product appearance & included accessories may differ.
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Iso Material Chart
Primary Workpiece Material
N - Aluminum
Technical specifications
System of Measurement | Inch - ANSI |
Thread Series | UNC - Unified Natl. Coarse |
Thread Size | 1/4"-20 |
Tap Type | Spiral Flute |
Chamfer Type | Modified Bottoming |
Shank Type | Square |
Material | HSS-E |
Coating | Uncoated |
[TPI] Threads per Inch | 20 tpi |
Tap Drill Diameter | 0.205 in |
[ØDC] Cutting Diameter | 0.25 in |
[ØDMM] Shank Diameter | 0.255 in |
[L2] Chamfer Length | 2P - 3P |
[L1] Thread Length | 0.433 in |
[LU] Usable Length | 1.0 in |
[OAL] Overall Length | 2.5 in |
[SS] Square Size | 0.191 in |
[NOF] Number of Flutes | 2 |
[FHA°] Helix Angle | 50 |
Length / Diameter | 2.5 X D |
Thread Class | GH3 |
Through Spindle Coolant | No |
Weight | 0.1 lbs \ 0.1 kg |
Country of Origin | South Korea |
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