The Dormer E5501/4 is a straight flute hand tap designed for British Standard Pipe Taper threading, suitable for producing Rc 1/4" x 19 TPI internal threads. It features chamfer form C with a 2–3xP plug lead, making it suitable for 1.5xD through or blind...

The Dormer E5501/8 is a precision straight flute hand tap designed for producing Rc 1/8" British Standard Pipe Taper (BSPT) internal threads with 28 TPI. Featuring chamfer form C with a 2–3xP plug lead, it is suitable for both through hole and blind hole...

The Dormer E5503/8 is a high-quality straight flute hand tap engineered for producing Rc 3/8" British Standard Pipe Taper (BSPT) internal threads with 19 TPI. Designed with chamfer form C and a 2–3xP semi-bottoming lead, it is suitable for both through hole and blind...