Drilling accessories deliver repeatable hole depths, ideal for workshops and production runs. Accurate stops reduce rework and the frustration of inconsistent holes for woodworkers and DIYers. Would JIANGBINGREN Drill Bit Depth Stop Collar Set earn a permanent place in your toolkit?
⚡ At a Glance
- • Depth Control: Precise stops that prevent overdrilling and ensure repeatable hole depths
- • Best for: Woodworkers, production teams and DIYers needing consistent drilling depths
- • Not ideal for: Projects requiring micro-adjustable depths or drill bits outside the supplied sizes
Eight hardened carbon steel collars cover common drill diameters, with a hex wrench for tightening. Designed for use on twist drills and corner drills to stop bits at a preset point.
Repeatable hole depths – With eight precision collar sizes
Collars slide onto the drill bit and lock at a measured position using a set screw tightened by the included Allen key. Available diameters are 3, 4, 5, 6, 8, 10, 12 and 16 mm.
Set a measured depth once and produce identical holes across a run, which saves time when making jigs, dowel holes or production batches.
Secure locking, no slippage – With included hex wrench and set screws
A threaded set screw clamps onto the drill bit when tightened with the supplied hex wrench, reducing axial and rotational movement during drilling.
Screws hold firmly during use, preventing the collar from creeping and avoiding inconsistent hole depths or damaged workpieces.
Durable and reusable – With premium carbon steel construction
Carbon steel rings resist deformation under repeated clamping and drilling forces, maintaining a consistent clamp on the bit over many cycles.
Robust construction means fewer replacements, making the collars suitable for regular workshop or light production use.
✨ The 4 Key Reasons for JIANGBINGREN Drill Bit Depth Stop Collar Set
- Eight collar sizes — Achieve exact depths across common drill bit diameters
- Included Allen key — Tightens collars securely for repeatable drilling without slippage
- Carbon steel rings — Resist wear for frequent use in production environments
- Compact storage case — Keeps collars organised and portable between job sites
📋 Technical Details at a Glance
- Category: BISS
- Sizes included: 3 mm, 4 mm, 5 mm, 6 mm, 8 mm, 10 mm, 12 mm, 16 mm
- Number of pieces: 8 collars and 1 hex wrench
- Material: Carbon steel
- Compatible with: Twist drills and corner drills
❓ Frequently Asked Questions
Q: What sizes are included in the set?
A: The set includes eight collar sizes: 3, 4, 5, 6, 8, 10, 12 and 16 mm.
Q: How do you set the drilling depth?
A: Slide the chosen collar onto the drill bit, measure the depth with a ruler, then tighten the set screw using the included Allen key to lock the position.
Q: Which drill types are these collars compatible with?
A: Collars are designed specifically for use with twist drills and corner drills, offering controlled stops to avoid overdrilling.
🏆 Our Verdict
Collars suit woodworkers, small production teams and DIYers who need repeatable, accurate hole depths. Secure set-screw locking and hardened carbon steel construction make consistent drilling straightforward, especially for batch work. A modest outlay for a durable set, the collars should save time and reduce rework across many jobs.
