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Spiralock® Tap WedgeSpiralock® taps are furnished with ramp angles as shown here. This is referred to as style "BT" for bottom tapping. When tapping from the opposite end of a through hole, you must specify Spiralock style "TT" (top tapping), which has the ramp angle facing the opposite direction.

An innovative line of cutting taps with cutting geometry tailored for cutting threads in traditionally difficult materials, including high nickel alloys and alloys of titanium. Every aspect of the tool is designed to provide good chip flow and to keep cutting edges sharp. Use of cutting oil for lubrication is essential.

Fast Facts:

  • Specially adjusted geometry reduces friction between the tool and workpiece
  • Intended for abrasive and high tensile strength materials
  • Powdered metallurgy grade of high speed steel
  • Dual layer PVD coating
  • Spiral point with plug chamfer, or spiral flute with bottom chamfer (sizes larger than #3 or M2.5)

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The availability of the products described on this site, and the product descriptions, may vary from country to country. Consult your STANLEY® Engineered Fastening Account Executive or your local distributor for specific product information.