Sutton T794 3/8 x 16 TPI Spiral Flute Tap R10 Ni - PM-HSS Co - TiCN - DIN 2184-1

The Sutton T794 is a spiral flute tap (R10 spiral, Ni designation) for UNJC threads, made from powder metallurgy, 8% cobalt high speed steel (PM-HSS Co) with a TiCN coating. This listing covers 3 sizes from 1/4 x 20 TPI to 3/8 x 16 TPI.

The 10° right-hand spiral flute suits blind holes in tough, short chipping materials, up to 1.5 x D in depth. The slow helix does not transport chips well, so it has no advantage in soft or long chipping materials, especially deeper than 1.5 x d1. The chamfer is Form C (3 x P), generally for blind holes.

The thread tolerance is 3BX. The tap is built to DIN 2184-1.

Where this product is used

• For Nickel alloys / age-hardened super alloys >1150 N/mm2.
• Blind or through holes.
• Depths up to approx. 1.5 x d1.

Design features

• Powder metallurgy, 8% cobalt high speed steel (PM-HSS Co). The cobalt keeps strength and hardness at very high cutting temperatures, which suits heavy duty tapping of materials up to 45 HRC.
• TiCN coating for abrasive materials such as cast iron and aluminium alloys, and adhesive materials such as copper and copper-based alloys.
• 3 flutes.
• 10° right-hand spiral flute.
• Form C chamfer, 3 x P.
• Thread tolerance 3BX.
• Reinforced cutting geometry.
• DIN 2184-1 construction.

Sizes

Dimensions are in millimetres. Item numbers are the Sutton catalogue numbers. If you are not sure which tapping drill to use, try our tap drill size selector.

Key specifications

Related products

Related Sutton taps: T786 UNJC Spiral Flute Tap L12 Ti - PM-HSS Co - TiCN - DIN 2184-1.