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left hand drill bits

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left hand drill bits
Greig Smith Offline
Scuderia Shoestring
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Joined: Aug 2017 Posts: 382 Threads: 16
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Location: Port Elizabeth, Sunny South Africa
Car type: '26 Chummy, '28 Top Hat, '33 Type "65", single seaters
#11
02-07-2020, 07:57 PM
(02-07-2020, 06:37 PM)JonE Wrote: bought a cheap UK Sealey set to start, and punched the centre of the two manifold studs. Feel soft enough. Realised that the LH drills are quite flat ended, so am going to have to open the hole out a good deal at shallow depth before the 3mm one will actually catch and stay central. So I see one does need them from 1mm upward to start applying the correct turning force from the beginning.

Center punch the broken studs as accurately as possible, start the initial drilling with your conventional RHD drill bits and as soon as you have a suitable pilot hole, switch over to the LHD bits & run your battery drill in reverse.

Aye
Greig
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Messages In This Thread
left hand drill bits - by JonE - 26-06-2020, 10:36 PM
RE: left hand drill bits - by Charles P - 26-06-2020, 10:47 PM
RE: left hand drill bits - by bob46320 - 27-06-2020, 08:19 AM
RE: left hand drill bits - by Chris KC - 27-06-2020, 08:58 AM
RE: left hand drill bits - by Barry Townsend - 27-06-2020, 10:25 AM
RE: left hand drill bits - by Ivor Hawkins - 27-06-2020, 10:51 AM
RE: left hand drill bits - by Chris KC - 27-06-2020, 10:23 PM
RE: left hand drill bits - by JonE - 02-07-2020, 06:37 PM
RE: left hand drill bits - by Ruairidh Dunford - 02-07-2020, 06:47 PM
RE: left hand drill bits - by Ian McGowan - 02-07-2020, 06:58 PM
RE: left hand drill bits - by Greig Smith - 02-07-2020, 07:57 PM
RE: left hand drill bits - by JonE - 04-07-2020, 03:24 PM
RE: left hand drill bits - by Greig Smith - 04-07-2020, 08:42 PM
RE: left hand drill bits - by David Stepney - 05-07-2020, 12:26 AM

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