Deep Hole Boring Services, Long Hole Boring, UK

As masters of the art of deep hole boring, we provide the ultimate solution to the growing requirements of the petrochemical, hydraulic and aerospace sectors for precision bores greater than 20mm diameter.

Utilising the latest in cutting and machine tool technology we achieve close tolerances, excellent accuracy and surface finishes second to none.

Deep hole boring is a machining process in which holes are drilled with a depth-to-diameter ratio in excess of 100:1.

It can be used for a variety of industries:

Oil and gas production
Hydraulics
Aerospace and defence
Mold making
Heavy industry

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Description	Value
Minimum Bore Diameter	20mm 0.787″
Maximum Bore Diameter	203.2mm 8″
Maximum O.A.L.	3000mm 118.11″
Bore Tolerance under 76.2mm/3”	± 0.1mm ± 0.004”
Bore Tolerance over 76.2mm/3”	± 0.15mm ± 0.006”
Surface Finish (Drilling Only)	3.2μ 125 CLA
Accuracy (Drill Wander / T.I.R)	0.025mm per 25.4mm 0.001″per 1″drilled

Information/parameters needed for deep hole boring quoting

Material specification – this is essential to ensure accurate quoting as the properties for each material differ, as well as the speeds and feeds required to machine them effectively.
Outside diameter – we need this to assess which machine can hold the component as well as to ensure that we have the right wall thickness for a safe drilling process.
Inside diameter – this is to ensure we have tooling available as materials such as Inconel require specialist tooling.
Overall length – these are required for tooling and machine capacity decisions.
Type of bore – for example, is it a through bore or blind bore?
Depth tolerance – if you require a blind bore, we need to know the required tolerance on the bore depth. If there is excess material on the length, we can ‘back-face’ to achieve tighter depth tolerances.
Bore tolerance – this is a major factor when quoting the deep hole drilling process. A honing process may be required if the tolerance is below the ±0.25mm industry standard.
Surface finish requirements – in addition to bore tolerance, this is required for us to decide if we need to add a honing operation. Industry standard for deep hole boring is 3,2µ or 250 CLA.
T.I.R or straightness requirements – we need to know these even if we are only carrying out the initial first or second stage process boring operation to ensure there is sufficient material to be turned off to correct drill wander.

Why choose Hone-All for deep hole boring?

At Hone-All, we take pride in helping our customers to achieve the best possible machining results in the most cost-effective way possible. We invest in the latest deep hole boring technology as well as the professional development of our skilled engineers to deliver precise and reliable results that meet the needs of every project.

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Testimonials

“Please can you pass on a huge thank you to all those involved in turning this job around in such a short timescale; It has been a pleasure working with you.” - Lara Green Senior Buyer, Esterline, Racal Acoustic

“Hone-All have always been very helpful and professional in dealing with orders from us at JVD Engineering Ltd. I would highly recommend them as a valued supplier. Customer service & communication is spot on.” - Matthew Abraham-Thomas

“We have used Hone-All as a sub-contractor for a number of years and during this time we have nothing but praise for the service , quality and delivery they provide. We would highly recommend using their services to anyone.” - Alan Donn PM Services Ltd

“Hone-All have been a valued supplier to Cardan Precision for many years. Excellent quality of work, very easy to deal with, and always willing to take on the challenges we throw at them!” - Joe McFall

“A great team of people to deal with at Hone-All Precision, always professional and always understand what the requirements are no matter the complexity needed. Their quotations are very easy to understand and very clear in the scope they will supply. Excellent quality of product that is delivered. A great company to work with as a supply partner, and nothing is ever too much trouble... Can do attitude!” - John Toshack General Manager

“We at NSP engineering have always found Hone-All a joy to work with. The quality of their work is first class and the lead times usually very good but the best thing we find is they are very approachable & easy to talk to they are always willing to help as much as possible but never mis-leading on what and when they can deliver. We would recommend Hone-All Precision to anyone.” - Kevin Barber

“From initial contact all the way through to completion of the task, the team at Hone-All have been second to none. They have been professional throughout, clear with their communication and understanding of our requirements. On top of this, the part they manufactured was exceptional!! I know that going forward we at Stead and Wilkins will look to use them in the future and would happily recommend them to others” - Paul McGrath

“Hone-All is a fantastic company managed by true professionals who have never let us down in all the years we have known them, excellent quality and customer service 10/10” - Pete Wood

"The team at Hone-All were dedicated until each and every last detail had been completed, updating us with their progress on an almost daily basis which generated confidence at Prodrive that these particular parts were under control." - Gary Fielding Head of AT Operations - Prodrive

"I always follow the press releases on Hone-All with great interest as I find all information about your company very informative and interesting." - Stuart Thornton MD Thornton Engineering

"I would like to say if all companies were as conscientious, informative and professional as Hone-All the industry would be a lot better place." - Dave Wright

"It was extremely refreshing to walk into a supplier that cares about their customers and especially to see a solid effort made by everyone to ensure that the whole experience is positive." - Chris O’Sullivan Delivery Project Leader, BP

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