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Set of eight black carbon steel drill stop collars with hex wrench

Unique-Bargains

Unique-Bargains Drill Stop Collar Set 8pcs 3-16mm Black Carbon Steel with Hex Wrench

SKU CH-TX9K-T0QGJ

Eight carbon-steel drill stop collars from 3 mm to 16 mm with hex wrench for repeatable hole depth

  • Main materialCarbon Steel
  • Consistent drilling depth with eight carbon-steel collars
  • Fits common bit sizes from 3 mm to 16 mm
  • Hex wrench included for quick collar adjustment
  • Lightweight 59 g set keeps drill bits balanced
  • Black finish resists corrosion during workshop use

Drill Stop Collar Set 8pcs

This set supplies eight carbon-steel collars that clamp onto drill bits to lock drilling depth. It is intended for woodworkers and maintenance technicians who need repeatable hole depths for dowels, cavity fixings or shaft-mounted tooling.

Collar range 3mm to 16mm

Internal diameters cover 3mm, 4mm, 5mm, 6mm, 8mm, 10mm, 12mm and 16mm, each with an 8mm thickness. The spread handles common metric twist bits and small-diameter spade bits, but it stops at 16mm so larger auger or hole-saw shanks are not supported.

Hex wrench included

A single hex key tightens the set-screw on every collar, removing the need for tape or improvised depth stops. The collars add 59g total weight and require only the bit shank and a chuck to operate, leaving the drill’s full speed and torque available.

How it compares

Measured against everything we stock in Bits, Hole Saws & Accessory Kits, at today’s prices. Recalculated every night.

Price $5.99
Cheaper than about 93% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameUnique Bargains
Size & build
Main materialCarbon Steel

Questions about this item

Will the 16 mm collar fit the shank of my existing 16 mm drill bits?

Yes, the set includes an internal diameter of 16 mm (0.63 inch) which matches standard 16 mm bit shanks.

How do I confirm each collar is locked at the correct depth after tightening?

Tighten the locking screw with the supplied hex wrench against the bit land, then remove the wrench and verify the collar does not slide.

Does the package contain anything besides the eight collars and the hex wrench?

No, the box contains only the eight carbon-steel stop collars (3 mm to 16 mm) and one hex key.

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