1/4-28 H3 3F SF HS-EX BO
Spiral Flute Tap; 1/4″ - 28 ; 2-1/2″ OAL ; 3 FL ; HSS-EX ; Oxide ; H3 ; Series T2-S
| Thread Diameter Size (TDZ) | 1/4″ | Tool Type | Combo Tap |
| Threads per Inch (TPI) | 28 | Chamfer | 2P - 3P |
| Thread Standard | UNF | Coating | Oxide |
| Overall Length (OAL) | 2-1/2″ | Shank Type | Square |
| Thread Cutting Part Length (THL) | 0.354″ | End Shape | Modified Bottoming |
| Usable Length (LU) | 1″ | Coolant Supply Property (CSP) | External |
| Connection Diameter Machine Side (DCONMS) | 0.255″ | Length Group | 2.5xD |
| Flute Count (NOF) | 3 | Square Size | 0.191″ |
| Flute Helix Angle (FHA) | 40 Degrees | Measurement Type | Inch |
| Cutting Edge Material | HSS-EX | Tapping Prehole Diameter (Pre-hole) | 0.2175″ |
| Thread Tolerance Class (TCTR) | H3 | Series/List # | T2-S |
| Special Feature | Black Ring | Thread Size | 1/4″ - 28 |
| Standard | 302A |
Product Features
| Country of Origin | S.Korea |
Shipping Info
Package Length
3.125
Package Width
0.5
Package Height
0.375
Package Weight
0.031
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