2007-01-31 09:21:29 · 7 answers · asked by GREGORY T 1 in Cars & Transportation ➔ Maintenance & Repairs
10.5 and if you are tapping out steel use a cutting compound or oil ,if you are tapping out cast iron or alloy you don,t need a lubricant ,but use a tapper tap first .
2007-01-31 11:03:39 · answer #1 · answered by Mick 4 · 0⤊ 0⤋
Hi there, there tap normally has printed on it's side the required drill size that has to be used. If the tap has a pitch of 1.5mm then take 1.5mm from 12mm and thats usually a good guide line!
Good Luck
2007-01-31 10:14:39 · answer #2 · answered by gsf1200 5 · 0⤊ 0⤋
to answer this question the thread pitch must be stated for 12 mm there are 1, 1.25 1.5 & 1.75 as popular pitches the finer the pitch the larger the tapping size 10.2 for the 1.75 getting it wrong means looking for someone with a t/sert kit that size to recover it
2007-01-31 18:25:59 · answer #3 · answered by Mick W 7 · 0⤊ 0⤋
Look on the side of the tap, it will state what size drill to use.
2007-01-31 09:25:39 · answer #4 · answered by rex_rrracefab 6 · 0⤊ 0⤋
go for 10.5MM,it should give an average sixty percent thread form which is more than enough for anything other than specialised applications.remember to reverse your tap every turn or so to break the cut,WD40 great lubricant,even on cast iron,wear safety glasses!
2007-01-31 23:05:54 · answer #5 · answered by jane k 2 · 0⤊ 0⤋
Use a 3/8 tap and you will not be far off your target! NDS
2016-03-28 22:46:39 · answer #6 · answered by Laura 4 · 0⤊ 0⤋
10.2 mm coarse pitch and 11.0mm fine pitch thread.
2007-01-31 09:33:56 · answer #7 · answered by jayktee96 7 · 0⤊ 0⤋