Unique Bargains Drill Stop 3/8 I.D. Stainless Steel for Set Screws Chuck Woodworking Drill Bits Depth Holder 2 Pcs

Specifications: Product Name: Drill Bit Stop Material: Stainless Steel Locking Screw: M6 Thickness: 3/8 inch (9.5mm) Internal Diameter: 3/8 inch (9.5mm) External Diameter: 3/4 inch (19mm) Package Contents: 2 x Drill Bit Stops Recommend to use drill stops with a lubricant to prevent burning of the material surface. How to Use: 1) Choose a correct size drill stop and slide it to the desired depth on the drill bit. 2) Align the locking screw with land (body) and then tighten it. 3) Start drilling same depth holes with this drill stop.