![A set of C.E.I. (Cycle Engineers Institute) taps and dies. Used on bicycles and English motorcycles. Later called B.S.Cy. (British Standard Cycle). Up to 7/16" all threads are 26tpi. Larger sizes are A set of C.E.I. (Cycle Engineers Institute) taps and dies. Used on bicycles and English motorcycles. Later called B.S.Cy. (British Standard Cycle). Up to 7/16" all threads are 26tpi. Larger sizes are](https://i.redd.it/f9ci6eqweqt51.jpg)
A set of C.E.I. (Cycle Engineers Institute) taps and dies. Used on bicycles and English motorcycles. Later called B.S.Cy. (British Standard Cycle). Up to 7/16" all threads are 26tpi. Larger sizes are
IRWIN HANSON TAP + DIE + DRL 117PC DELUXE SET - Drill Bit, Tap and Die Sets - IRW26377 | 26377 - Grainger, Canada
![IRWIN Tools Hanson Machine Screw/Fractional/Metric Tap and Hex Die and Drill Bit Deluxe Set, 117 Piece 26377, Silver/Blue : Amazon.ca: Tools & Home Improvement IRWIN Tools Hanson Machine Screw/Fractional/Metric Tap and Hex Die and Drill Bit Deluxe Set, 117 Piece 26377, Silver/Blue : Amazon.ca: Tools & Home Improvement](https://m.media-amazon.com/images/I/81Q2ZUou31L._SL1500_.jpg)
IRWIN Tools Hanson Machine Screw/Fractional/Metric Tap and Hex Die and Drill Bit Deluxe Set, 117 Piece 26377, Silver/Blue : Amazon.ca: Tools & Home Improvement
![Aceteel 3/8"-24 Tap and Die Set, 3/8 x 24 Left Hand HSS Machine Thread Tap and 3/8 x 24 Alloy Tool Steel Round Die : Amazon.ca: Tools & Home Improvement Aceteel 3/8"-24 Tap and Die Set, 3/8 x 24 Left Hand HSS Machine Thread Tap and 3/8 x 24 Alloy Tool Steel Round Die : Amazon.ca: Tools & Home Improvement](https://m.media-amazon.com/images/I/61YGoX9OIaL._AC_UF894,1000_QL80_.jpg)