Why manufacturing employees leave and how to understand why
Operators, technicians and supervisors leave for reasons that sit in shifts, skills and supervision. How to ask, read the pattern by shift and act on it.
6 min readRead articleAerospace tooling makers build the jigs, fixtures, gauges and moulds that hold and check parts in other aerospace plants. Hand-fitting craft takes about a decade to learn, and very few people hold it.

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Share your requirementsAn aerospace tooling maker designs and builds assembly jigs, drilling fixtures, inspection gauges, forming dies and moulds. A job follows the customer's part drawing through tool design, cutting of plate and block, rough and finish machining, wire EDM or grinding, hand fitting and bench scraping, a trial on a sample part and a final measurement. Every tool is a one-off. A few master craftsmen fit and finish by hand and judge by feel. Delivery is by project, with a long quiet design stretch followed by a hard push to meet the customer's trial date. Apprentices take years to become useful, and in many shops the masters are near retirement. For the wider sector, read the manufacturing overview.
These are the places the people side of this kind of business tends to give way. The rest of this page works through them.
HR here has to work for each of these groups, not only the office. The set-up below is written with all of them in mind.
Hand fitting and judging by feel sit with one or two people, and nobody has learned it from them in any planned way.
A trainee may spend years fetching and sweeping before being taught, and the best often leave before they become useful.
Design runs long, then machining, fitting and trial must all squeeze into the few weeks before the customer's date.
A machined block inside drawing tolerance can still be hard to fit, and the fitters carry the extra hours.
A toolmaker hand fitting a fixture and a machinist loading blocks may be paid close together, so the craft feels unrewarded.
Designers and fitters work apart, so details that cause rework at assembly never travel back to the drawing.
Start with the topics that matter most here: Career and Succession Management; Learning and Development; HR Strategy and Workforce Planning. Then work through the rest. Each topic is written for manufacturing, not in general.
Named backups for the roles that cannot be vacant.
Training planned from need rather than from the calendar.
How many people, in which roles, by when — and what they will cost.
Structure, reporting lines and who is allowed to decide what.
Requisition to joining, the same way every time.
A first day that is the same for the fifth joiner as the first.
Records, attendance, leave and the day-to-day HR that must simply work.
Salary structure, payroll inputs and a month that closes on time.
Goals, reviews and ratings that hold up in a conversation.
Communication, recognition and the conditions people actually work in.
Two routes — one for complaints, one for conduct — kept separate.
Policies a manager can apply, and obligations with owners and dates.
Induction, records, incident reporting and follow-through.
Who leaves, when, why — and which of them mattered.
Resignation to relieving letter, in a defined order.
Records that survive people, and approvals that do not queue.
A short monthly pack management actually reads.
An HR function that runs the same way every month.
The pieces a aerospace tooling makers business puts in place, in an order that makes each easier. Open any card for the detail.
Plan a series of recorded fitting and scraping jobs with a named apprentice beside him.
What this coversHidePlan a series of recorded fitting and scraping jobs with a named apprentice beside him. Fold it into the tool room's succession planning.
Set skills year by year, with a monthly check by a named mentor.
What this coversHideSet skills year by year, with a monthly check by a named mentor. A training route can supply the frame.
Break each tool into stages with dates and a staffing view so the final push is no surprise.
What this coversHideBreak each tool into stages with dates and a staffing view so the final push is no surprise. Workforce planning shows how.
A short meeting where the fitter says what will be hard to fit, so fixes happen before finish machining.
What this coversHideA short meeting where the fitter says what will be hard to fit, so fixes happen before finish machining.
Separate scales for hand fitting and gauge work, with their own pay, show that the craft is valued.
What this coversHideSeparate scales for hand fitting and gauge work, with their own pay, show that the craft is valued. See compensation benchmarking.
Before changing anything, find out what is true today. These checks take an afternoon and tell you which of the topics above to start with.
Share your requirementsConfirm with a qualified professional. What applies to you depends on your business, your state and your arrangements, and it changes. This page describes practice. It does not state a legal position.
The services below fit this kind of business best. Each starts by recording where you stand, and every later report compares against that. We do not promise outcomes.
A plan to pass hand-fitting and gauge skills from master toolmakers to named successors before they retire.
A written multi-year route for apprentices with mentors and monthly checks.
A staffing view of each tool project so peaks are planned rather than endured.
Separate grades for craft and routine machining, so master craftsmen see their skill recognised.
Start with a free conversation, or see the paid HR Diagnostic.
Understand the business, its workforce, current processes and HR challenges.
Find the missing, weak, inconsistent or person-dependent processes.
Create the structure, processes, policies, SOPs, dashboards and systems needed.
Help HR and department managers actually adopt the new system.
Digitise repetitive and approval-based workflows where it is worth doing.
Track hiring, attendance, employee cost, performance, training and attrition.
Strengthen the people-management system continuously, not once.
From the GullyHR blog: one on HR in manufacturing, and one on each of the topics this page points to.

Operators, technicians and supervisors leave for reasons that sit in shifts, skills and supervision. How to ask, read the pattern by shift and act on it.
6 min readRead article
A two-hour exercise that names the roles you could not fill quickly, who could cover them, and what readiness would actually require.
7 min readRead article
A calendar of courses, a budget spent by March and no record of what any of it changed. What a learning and development process contains when it starts from need rather than from the catalogue.
7 min readRead article
Hiring decisions made one request at a time, in the month the pain is worst. What a workforce plan contains and why a twelve-month view changes what you hire.
7 min readRead articleMore on the GullyHR blog.
Start early. Put a named apprentice beside him on live jobs, record the method with photographs and notes, and give him a recognised teaching role. Skill moves slowly, so plan over years.
Usually because training is vague and pay stands still. A written plan with visible steps, a mentor and a pay review at each step keeps more of them.
Break each tool into dated stages, review progress weekly and move people early to the stage that is slipping. A planned peak is far easier on a small team.
Many tool rooms do, because hand fitting is rarer and slower to learn than routine machining. Write the grades clearly and review them each year.
Hold a short fit review after rough machining, and ask designers to spend a morning at the bench each quarter. Small contacts cut the design faults that cost time later.
We would ask who the master toolmakers are and who learns from each, which tools shipped late and where the slip began, and how apprentices are progressing. A written apprenticeship with a craft grade scale is a likely first job. Scope follows in writing once we have talked.
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