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Depth Stop Drill Bit,Stop Collar Set Includes 1/8”, 3/16”, 1/4”, 5/16”, 3/8”, 7/16”, 1/2”, 5/8”and Allen Wrench(9Pcs), Premium High Carbon Steel Drill Bit Positioning Ring Split Ring- Tiosamd
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What people love (and don’t love)
What people love
High quality material, made of premium high carbon steel.
Works well for precise depth control and stays locked in place during use.
Good value compared to similar single-piece collars from hardware stores.
Includes multiple sizes and an Allen wrench for versatile use.
Essential and reliable for woodworking projects.
What people don’t love
Set screws can strip easily, making the collars useless.
Occasional issues with collars sliding on the drill bit.
Single set screw may cause uneven locking, potentially affecting accuracy.
Some users experienced failure ruining projects due to sliding stops.
Great value and quality for woodworking, but be cautious of locking strength and set screw durability.
If you need repeatable hole depth—without guessing—this Tiosamd depth stop drill bit collar set is a simple add-on for your drill bits. The split-ring design lets you position the stop at the depth you want, then tighten it down to help prevent over-drilling.
You can view the current price and full details on Amazon here.
The set includes eight common collar sizes plus an Allen wrench, making it a handy option for general DIY, woodworking, and other projects where consistent hole depth matters. It’s made from carbon steel with an uncoated finish.
Split-ring collar design adjusts along the drill bit for depth control
Carbon steel construction with uncoated finish
Works with many bit types; designed to help prevent excessive bit penetration
Recommended surfaces include wood, plastic, and ceramic
For best results, slide the collar onto the bit, set your target depth, and tighten the fixing screw with the included wrench. Always double-check the collar is secure before drilling, especially when working with harder materials.
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