Drill Stop Collar Set 3mm–10mm | Stainless Steel Depth Ring

Woodworking Drill Stop Collar Set – Precise Bit Depth Control

Take the guesswork out of drilling with this professional-grade Drill Bit Depth Stop Collar Set. Crafted from durable 304 stainless steel, these collars clamp securely around your drill bits to give you consistent, repeatable drilling depths every time — perfect for woodworking, joinery, cabinet making, and DIY projects.

Made in Mainland China.

Why You'll Love This Set

• Precision Depth Control: Lock your drill bit at an exact depth to avoid drilling too deep — ideal for dowel holes, shelf pin holes, and hardware installation.
• 304 Stainless Steel Construction: Resistant to rust and corrosion, these collars are built to last through heavy workshop use.
• Multiple Size Options: Choose from three set configurations to suit your bit collection — covering sizes from 3mm to 10mm.
• Easy to Install: Simply slide the collar onto your drill bit and tighten the set screw — no special tools needed.
• Versatile Use: Functions as a drill limiter ring, clamping device, and bit positioner for a wide range of drilling tasks.

Set Configurations

• Set A: 3, 4, 5, 6, 8, 10mm (6 pieces)
• Set B: 3, 4, 5, 6, 7, 8, 9, 10mm (8 pieces)
• Set C: 6, 8, 10mm (3 pieces)

Specifications

• Material: 304 Stainless Steel
• Sizes Available: 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm
• Use: Drill depth limiter, clamping ring, bit positioner
• Origin: Made in Mainland China

Package Contents

• 1 × Drill Bit Depth Stop Collar Set (configuration as selected)

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Frequently Asked Questions

Q: What sizes are included in the drill stop collar set?

A: Sizes vary by configuration. Set A includes 3, 4, 5, 6, 8, and 10mm collars. Set B covers 3, 4, 5, 6, 7, 8, 9, and 10mm. Set C includes 6, 8, and 10mm. Choose the set that best matches your existing drill bit collection.

Q: Are these drill stop collars compatible with standard drill bits?

A: Yes — these collars are designed to fit standard round-shank drill bits of the corresponding diameter. They slide onto the bit and are secured with a set screw, making them compatible with most twist drill bits used in woodworking and general DIY work.

Q: How do I attach and adjust a drill depth stop collar?

A: Simply select the collar that matches your drill bit's diameter, slide it onto the bit at your desired drilling depth, and tighten the set screw firmly using a hex key or Allen wrench. The collar will stop forward movement once the desired depth is reached, giving you consistent results across multiple holes.