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ANSWCHT-HSSE-WHSS-E Hand Tap Whitworth HT-HSSE-WSold0pcsThe HT-HSSE-W is a straight flute tap made of cobalt high-speed steel (HSS-E) — straight flutes suit both hand and machine tapping. It comes in 12 sizes (thread dia 1/8~1", TPI 8~40). Supplied uncoated (bright finish). It handles carbon and alloy steel, stainless steel, cast iron, non-ferrous metals such as aluminium and copper, with workpiece hardness up to HRC40. Typical applications: Whitworth hand tapping with a tap wrench in repair and assembly work, and shallow machine tapping in short-chipping materials such as cast iron. In the same H.T.D family: the alloy tool steel HT-SKS-W (27 sizes, thread dia 1/16~2"), the long-shank straight flute LHT-W, plus the spiral flute SFT-HSSE-W for blind holes and the spiral point POT-HSSE-W for through holes; HT-HSSE-W is HSS-E (cobalt), thread dia 1/8~1" in 12 sizes. Can it tap both blind and through holes? Yes; a straight flute tap holds chips in its flutes, so for deep blind holes or high volumes choose the spiral flute SFT-HSSE-W (blind holes) or the spiral point POT-HSSE-W (through holes). What if I need 7/16 or more than 1"? See HT-SKS-W (up to 2").
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Cutting ToolsTapStraight Flute Tap
HSS-E Hand Tap Whitworth HT-HSSE-W
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HSS-E Hand Tap Whitworth HT-HSSE-W

The HT-HSSE-W is a straight flute tap made of cobalt high-speed steel (HSS-E) — straight flutes suit both hand and machine tapping. It comes in 12 sizes (thread dia 1/8~1", TPI 8~40).

Specifications (12 items)

Part No.StandardDia.Pitch
ANSWCHT-W-E_1/8x40Whitworth W1/840
ANSWCHT-W-E_5/32x32Whitworth W5/3232
ANSWCHT-W-E_3/16x24Whitworth W3/1624
ANSWCHT-W-E_1/4x20Whitworth W1/420
ANSWCHT-W-E_5/16x18Whitworth W5/1618
ANSWCHT-W-E_3/8x16Whitworth W3/816
ANSWCHT-W-E_1/2x12Whitworth W1/212
ANSWCHT-W-E_9/16x12Whitworth W9/1612
ANSWCHT-W-E_5/8x11Whitworth W5/811
ANSWCHT-W-E_3/4x10Whitworth W3/410
ANSWCHT-W-E_7/8x9Whitworth W7/89
ANSWCHT-W-E_1"x8Whitworth W1"8

Specification Range

Diameter1/8~1"
Pitch8~40

Product Description

The HT-HSSE-W is a straight flute tap made of cobalt high-speed steel (HSS-E) — straight flutes suit both hand and machine tapping. It comes in 12 sizes (thread dia 1/8~1", TPI 8~40). Supplied uncoated (bright finish). It handles carbon and alloy steel, stainless steel, cast iron, non-ferrous metals such as aluminium and copper, with workpiece hardness up to HRC40. Typical applications: Whitworth hand tapping with a tap wrench in repair and assembly work, and shallow machine tapping in short-chipping materials such as cast iron. In the same H.T.D family: the alloy tool steel HT-SKS-W (27 sizes, thread dia 1/16~2"), the long-shank straight flute LHT-W, plus the spiral flute SFT-HSSE-W for blind holes and the spiral point POT-HSSE-W for through holes; HT-HSSE-W is HSS-E (cobalt), thread dia 1/8~1" in 12 sizes. Can it tap both blind and through holes? Yes; a straight flute tap holds chips in its flutes, so for deep blind holes or high volumes choose the spiral flute SFT-HSSE-W (blind holes) or the spiral point POT-HSSE-W (through holes). What if I need 7/16 or more than 1"? See HT-SKS-W (up to 2").

Workpiece Materials & Hardness

  • Steel (P)
  • Stainless steel (M)
  • Cast iron (K)
  • Non-ferrous metals (N)

Max. workpiece hardness HRC40

Related Resources

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