
Walter-Prototyp
1/4-20 UNC Cobalt Tap, TiAlN - Walter-Prototyp 7557049
MFR# 7557049Series TC117
$61.70List $76.47
Save 19%
In stock - ships in 1-3 business days
Request a quote
- Fast sourcing
- Regrinding available
- 20+ yrs expertise
Flutes3
Thread size1/4-20
CoatingTiAlN
Description
The Walter-Prototyp 7557049 is a 1/4-20 UNC Cobalt tap with a TiAlN finish. 3 flutes.
Specifications
ApplicationBlind Hole Threading
ChamferBottoming
Class of fit2B/3B
Coating finishTiAlN
Coolant throughNo
Flute directionRight Hand
Flute styleSpiral
Helix angle40
MaterialCobalt
Material applicationCast Iron; Non-Ferrous Metal; Stainless Steel; Steel
Material gradeWY80RG
Number of flutes3
Overall length (mm)80.00
OversizeNo
Primary workpiece materialSteel; Stainless Steel; Cast Iron; Aluminum & Non-Ferrous
Shank diameter0.2550
Square length0.3130
Square size0.1910
Tapping depth1.1810
Threads per inch20
Thread directionRight Hand
Thread length0.3940
Thread size in1/4-20
Thread standardUNC
Can't find your exact tool?Send us a part number — we'll cross-reference it.
Dull tools?Regrinding extends tool life and saves cost.
Alternate & equivalent tools
Matched on diameter, flute count, and material. Need a specific brand or coating? Cross-reference this tool.
Spec-matched alternates load as the catalog fills in. Meanwhile, browse the End Mills collection and filter by diameter, flutes & length of cut.
