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Sutton T699 BSPF (G) Spiral Flute Tap R50 Black Magic - PM-HSSE V3 - Hardlube - DIN 5156: 1 x 11 BSPF

SKU: A0131490 | Model: T6993325

This is the tap size 1 x 11 BSPF option of the Sutton T699 BSPF (G) Spiral Flute Tap R50 Black Magic - PM-HSSE V3 - Hardlube - DIN 5156. Key details for this option: thread size G 1 x 11 TPI, thread length 30mm, tapping drill size 31mm, square size 20mm, shank diameter 25mm.

Sutton T699 Spiral Flute Tap R50 UNI Black Magic

The Sutton T699 is a spiral flute tap (R50 spiral, UNI designation, Black Magic range) for BSPF (G) threads, made from powder metallurgy, vanadium grade high speed steel (PM-HSSE V3) with a Hardlube (TiAlN + WC/C) coating. This listing covers 7 sizes from G 1/4 x 19 TPI to G 1 x 11 TPI.

The 50° right-hand spiral flute suits blind holes in long chipping materials: the high helix angle curls the chips and transports them back out of the hole. The tap cuts on reversal, so the flutes have rake on both front and back faces. The UNI designation is for normal, general purpose materials, with a normal rake angle and high thread relief, in powder metal high speed steel. The chamfer is Form C (2.5 x P), generally for blind holes.

The thread standard is ISO 228. The tap is built to DIN 5156: reduced shank with square drive.

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