SPECIAL PRODUCT FOCUS:
COIL-SERT™ THREAD REPAIR

S.T.I. Taps

Always use Coil-Sert™ S.T.I. (Screw Threaded Insert) Tap when tapping threads for any helically coiled insert.

Straight Flute -
Widely used for general hand and machine tapping operations

Spiral Pointed & Spiral Flute -
Used for efficient chip disposal in production tapping operation.

Plug Style
4 Thread Chamfer - For thru holes and in blind holes that allow for ample chip clearance. Easier starting and requires less tapping torque than bottoming taps.

Spiral Pointed Plug
4 Thread Chamfer - Incorporates an angular grind at the point end of the tap which shears chips and drives them forward of the tap. Used widely in long thru holes and blind holes with ample chip clearance. They are free cutting and provide increased tap strength. Not recommended for abrasive material.

Bottoming Style
2 Thread Chamfer - For blind holes drilled to a minimum depth that requires threads close to the bottom of the hole.

High Spiral Flute-Bottoming
2 Thread Chamfer - Spiral flute for efficiently pulling stringy chips out of deep or blind holes in soft materials.

***UNDERLINE denotes taps used in kits***