These are for making new threads and so are of the highest quality available.
eBay
M20 is a 17.5mm HSS Drill. M2 is a 1.6mm HSS Drill. Presto HSS Tapping Drills For M2-M20, The Price Is For A Single Drill Only. M10 is a 8.5mm HSS Drill. M8 is a 6.8mm HSS Drill. M7 is a 6.0mm HSS Drill.
eBay
eBay
3 Pieces per set which includes a 1st (Taper), 2nd (Plug) & 3rd (bottoming) tap. - These Can Be Used By Hand Or On A Machine. Rennie Tool Co Ltd.
eBay
Part No 2610. M2 x 0.4 Taper, Second & plug. e.g: ordered by mistake, wrong size ordered etc. (Set of 3).
eBay
M12 x 1.25. M10 x 1.25. M12 x x1.5. M12 x 1.75. Quantity: One. M14 x 1.25. Far superior to carbon steel.
eBay
Smooth tempered finish reduces friction and produces a fine finish thread. Can be used for hand tapping without need of a lead tap. TECHNICAL INFORMATION.
eBay
All Sizes M1 - M30. Sizes M1 To M6 Have A Pointed Nose. Sizes M8 To M30 Have A Flat Nose.
eBay