Sizes: 1/4 "T" Type / 1/2 "T" Type.
Purpose: Holder for Hand Tapping/ Steel, Brass & Bronze, Aluminium, Cast Iron, Plastic.
Tips & Hints: Secure workpiece and select lubricant. Secure tap in wrench, place tap squarely in the hole exerting downward pressure and turn clockwise until resistance is felt.
Once the tap has started it will draw itself into the workpiece, then reverse to break the chip. Screw the tap slowly into the hole, backing off occasionally when tap becomes difficult to turn. Never force the tap as breakage could result.
Always wear safety goggles or a face shield when using cutting tools.