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Stainless Steel Made of Stainless steel material, which is durable and rust-proof, strong and durable, and has a long service life. The collar adopts screw type design, and will not damage bits.

Suit for The depth stop collar fits for high carbon steel Drills,and positively locks anywhere along the bit. As Drill Limited rings, clamping device, positioner.

Adjustable Drill stop bit can be quickly and easily adjusted at any point on drill bit flutes, helps to drill holes to exact depths, prevents under and over drilling.

Accurate Control With the setscrew tight the collar will remain securely in place exactly where you put them and will accurately control the depth of the hole you are drilling.

Application Bit limit rings are used as a shaft collar on machinery and can be used on twist drill bits or brad point drills or any type of bit to prevent excessive drill bit penetration and for any job that uses a bit and needs nicety.