Brand new: lowest price
- Get it by Fri, 23 Nov - Sat, 24 Nov from Redruth, Cornwall
- • New condition
- • 60 day returns - Buyer pays return postage | Returns policy
HSS A002 Tin Coated Drill Bit. A basic mineral oil should be used for running in as friction between the piston rings and cylinder linings is needed to allow the engine to bed in properly. If a synthetic oil is used, it prevents sufficient friction being generated and can lead to the bores becoming glazed.