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82-Degree Countersink Bit Set

Match a countersink to the screw head and material before recessing a fixing; check the listed angle, diameter and drill fit.

AliExpress

RECORDED PRICE$8.85

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Price source & update time

Catalog price · not live. Feed dated Nov 4, 2026. Retrieved Nov 5, 00:20 UTC. Options, US delivery, tax and final price may differ at AliExpress.

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A good fit for

An experienced DIY user preparing a recessed seat for a compatible flat-head screw in suitable material.

THE PRICE, IN CONTEXT

Price history

USD · recorded prices

A price tag is a moment. A history gives it context.

Latest recorded: $8.85
Lowest recorded: $8.85
Highest recorded: $10.37

4 recorded observations. These are snapshots, not continuous price monitoring.

Unobserved days are not filled in. Long gaps are not connected.

USD catalog observations for the same recorded item, seller and affiliate-link option marker. The marker is not an independently verified checkout SKU. Dates are feed dates, not the times a seller changed a price. Repeated downloads do not add days; missing or conflicting observations are omitted. These are not live prices or a lowest-ever-price claim.

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Source dates and collection times are shown separately.
Observation date	Price (USD)	Collected (UTC)
Nov 4, 2026	$8.85	Nov 5, 2026 00:20
Nov 2, 2026	$8.88	Nov 3, 2026 23:50
Nov 1, 2026	$8.88	Nov 1, 2026 23:50
Oct 28, 2026	$10.37	Oct 29, 2026 21:52

What this chart can tell you

We show only observations saved for this listing. Catalog dates describe the source file, not the exact time a seller changed a price. US listing snapshots can refer to different product options or customer offers. Sources stay separate.

Lowest recorded means the lowest in the displayed records, not the lowest price ever. Shipping, tax and offer eligibility can change the checkout total. A discount badge appears only when our separate price-drop checks are met.

THE BUYER PERSPECTIVE

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A REASON TO PICK IT. A REASON TO PAUSE.

The useful part.
The part to check.

Our buying notes are based on listing information and the sources in the guide below.

01 / THE FIT

Where it earns its place

Match a countersink to the screw head and material before recessing a fixing; check the listed angle, diameter and drill fit.

Best suited to

An experienced DIY user preparing a recessed seat for a compatible flat-head screw in suitable material.

02 / THE CHECK

Before you buy

Confirm the screw-head angle, bit diameter, shank and material guidance. These are countersinks, not pilot-hole drills or a guarantee of metal-cutting performance.

Editorial buying guidance, not hands-on testing.

THE CLOSER LOOK

Know what you are getting.

A countersink bit set can create a recessed seat for a compatible flat-head screw. The reviewed listing shows five separate bits with hexagonal shanks and marked cutting diameters. It describes an 82-degree tip angle. Match that specification to the screw rather than assuming every countersunk fastener uses the same head geometry.

Fit checks: countersink bit set

The pictured diameter markings are 1/4, 3/8, 1/2, 5/8 and 3/4 inch. The seller’s diagram also labels the shank as approximately 1/4 inch. These are listing measurements, not dimensions checked with a caliper by AliSecrets. Confirm the exact selected pack and your drill’s chuck or holder requirements.

A countersink is not a replacement for the appropriate pilot-hole drill. The recess and the hole through the workpiece serve different purposes. Choose the method, speed and depth from the tool and fastener instructions, secure the workpiece appropriately and use suitable eye protection.

The title mentions wood and metal, but does not establish performance across different alloys, coatings or sheet thicknesses. Confirm guidance for your material and make a suitable test piece before working on the finished part. Tool sharpness, concentricity and cutting life have not been tested.

This set addresses screw-head seating, a different task from trimming a rough edge with a handheld deburring blade. Buy it for a recurring fastening need rather than for the number of bits pictured. The selection is based on catalog evidence and two images; confirm US delivery and the final retailer total.

For other practical tasks, browse our Tools & DIY collection.

BEFORE THE FINAL TOTAL

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82-Degree Countersink Bit Set

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