Quality Control

Quality inspector measuring horn mugs with a caliper
100% Inspected
Quality control

Tested, not just looked at.

The test methods we actually run, how we classify a defect, the sampling standard, and what happens if a shipment reaches you short of spec.

Every batch goes through capacity and leak testing before it is packed, not just a visual check on the bench. Capacity is measured against the tolerance stated on your purchase order, and any piece outside that range is pulled before it reaches the carton. Defects are graded critical, major or minor — a critical defect (a leak, a crack, a wrong dimension) stops the batch; a minor defect (a small surface mark inherent to natural horn or wood grain) is disclosed to you rather than hidden, since it is a feature of the material and not a fault in the making. Sampling follows AQL 2.5 for cosmetic checks and 100% inspection for capacity and seal on drinkware, so the numbers you get in a pre-shipment report reflect what actually left the floor. If a shipment still reaches you short of spec, tell us within [NUMBER] days of delivery with photographs, and we will remake or credit the affected units — we would rather absorb that cost than have you carry it.

  • Capacity and leak test — every piece, not a sample, before packing
  • Wall thickness check against the agreed minimum, on drinkware and urns alike
  • Visual grading under standard light for finish, banding and engraving placement
  • Random carton opening at the packing stage to confirm count and packed weight
Test methods

Six checks, and what each one catches.

A visual inspection alone will pass a horn that leaks on the third use. These are the checks that catch what the eye does not.

Indicative HS headings by range

Range Material Indicative Heading Confirm
Drinking horns, horn mugs, shot glasses Worked ox / buffalo horn 9601.90 [verify]
Blowing horns Worked horn 9601.90 [verify]
Wooden mugs, tankards, yarn bowls Wood, tableware / kitchenware 4419.90 [verify]
Wooden ship wheels, wall décor Wood, ornamental articles 4420.10 [verify]
Crochet hooks, yarn winders Wood [confirm heading] [verify]
Cremation urns — wood Wood, ornamental articles 4420.10 [verify]
Cremation urns — brass Copper alloy, ornamental articles 7419.80 [verify]
Cremation urns — aluminium Aluminium, other articles 7616.99 [verify]
Leather holsters, belts, straps Leather articles 4205.00 [verify]
These headings are a starting point for your own classification, not a ruling. Tariff treatment depends on the exact material composition, construction and use of the finished piece, and the final call sits with your customs broker or your country's tariff authority. Where we have marked a heading [confirm heading] or [verify], we do not yet hold a binding ruling for that item.
Defect classification

Three classes, with real examples.

Generic AQL language means nothing for a natural material. These are the specific faults we grade against on horn and turned goods.

Class A — Critical

Never ships

A fault that makes the piece unsafe or unusable. The unit is scrapped, not reworked.

Leaks under fill. Crack through the wall. Lining absent or contaminated. Sharp rim or edge. Metal burr on a drinking surface. Stand or holster that will not hold the piece.

Class B — Major

Reworked or rejected

A fault a customer would notice and return. The unit goes back to the bench or out of the batch.

Capacity outside tolerance. Wall under minimum gauge. Engraving misplaced, misspelt or wrong scale. Lacquer lifting. Visible tool chatter. Wrong finish or wrong fitting supplied.

Class C — Minor

Accepted within limit

A cosmetic point inherent to hand-worked natural material. Counted, capped by agreement, and disclosed.

Colour variation between pieces. Minor surface marking in the horn. Grain or knot figure in wood. Slight difference in curve. Small dye variation across leather.

Class C is where disputes start. Agree the acceptable limit in writing at sample stage, and put the same wording on your own product page so the end customer is not surprised.
Sampling standard

How much of the batch we open.

Every drinking piece is leak-tested and capacity-gauged individually — that part is not sampled, because a leaking horn is the single fault most likely to reach an end customer.

Everything else runs on statistical sampling to AQL [level — e.g. 2.5 major / 4.0 minor], drawn at random across cartons rather than from the top layer.

If a sample fails, we do not simply replace the failed units. The batch is re-inspected at [tightened level] and the cause traced back to the stage that produced it, because a defect that appears once in a sample has usually appeared more often in the batch.

100% inspected

Every unit

Leak test, capacity, lining, carton count and label.

Sampled

Per batch

Wall gauge, finish adhesion, dimensions, packed weight.

First article

Per run

Engraving artwork, fitting assembly, packaging layout.

On request

Third party

SGS, Bureau Veritas, Intertek or your own agent, at your cost.

Inspection access

Come and look, or send someone

We would rather a problem is found on our floor than in your warehouse, so we do not restrict inspection access.

Option 01

Photo & video report

Included as standard. Mid-production photographs, then a pre-shipment set showing finished goods, packing and carton marks before anything is sealed. No charge.

Option 02

Third-party inspection

Book any agency you trust. We give floor access, pull samples to their instruction and hold shipment until they release it. Inspection fee is on your account.

Option 03

Your own visit

Come to Nagina and inspect yourself, at any stage from first article to packing. Give us [notice period] so the run is at a useful point when you arrive.

If it goes wrong

What we do when we fall short

Every manufacturer eventually ships something they should not have. What separates them is the procedure that follows.

Claims procedure

Step What happens Timeframe
01 — Report Send photographs of the fault, the carton mark and the packing list line. No form to fill in. Within 2 days of receipt
02 — Acknowledge We confirm receipt and tell you whether we accept the claim or need more evidence. No silence. 48 hours
03 — Trace The batch record is pulled and the fault traced to a stage and a date, so the same run is not repeated. 2 working days
04 — Remedy Replacement units on the next shipment, credit note against your next order, or refund — your choice, not ours. Agreed at step 03
05 — Prevent The check that missed it is added to or tightened in the inspection sheet for that range. Before the next run
We would rather lose the margin on a batch than lose a buyer who reorders four times a year.