CESFONJER 2 Set Drill Stop, 16 Pcs 3-16mm Drill Bit Depth Stop Collar Ring Positioner Spacing Ring Positioner Locator Woodworking Drill Bit with Hex Wrench

• ★Material: Carbon Steel. 16 Pcs Drill Bit Depth Stop Collar, clamping device, positioner. Size: 3mm, 4mm, 5mm, 6mm, 8mm, 10mm, 12mm, 16mm. Durable Alloy Steel Setscrew Type Collar will stay sturdy when tightened and is specially designed not to damage the bits.
• ★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 precision.
• ★The Drill Stop Bit Collar Set will quickly and easily help you drill holes to exact depths and are ideal for production work and repeated drilling by positively locking anywhere along the bit.
• ★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.
• ★Package include: 2 x Allen wrench hex key, 16 x Drill bit stop collars.

specification: 3mm, 4mm, 5mm, 6mm, 8mm, 10mm, 12mm, 16 mm M3: inner diameter: about 3.2mm, outer diameter: about 9.8mm, thickness: about 3.5mm, height: about 8mm M4: inner diameter: about 4.2mm, outer diameter: about 9.8mm, thickness: about 3mm, height: about 8mm M5: inner diameter: about 5.2mm, outer diameter: about 11.8mm, thickness: about 3.4mm, height: about 8mm M6: inner diameter: about 6.2mm, outer diameter: about 11.8mm, thickness: about 3mm, height: about 8mm M8: inner diameter: about 8.3mm, outer diameter: about 16mm, thickness: about 3.9mm, height: about 8mm M10: Inner diameter: about 10.3mm, outer diameter: about 18mm, thickness: about 3.8mm, height: about 8mm Stop collar: 3, 4, 5, 6, 8, 10, 12, 16(mm) Drill Bit Stop Collar is mainly used for fixed limit drilling depth on the drill bit. Works with both standard and brad-point bits, Setscrew type collar will not damage bits. Carbon Steel stops for durable performance. Material: Carbon steel. Hex shank Diameter: 2.5mm Specifications: ◆ Material:Carbon Steel ◆ Internal Diameter : 3, 4, 5, 6, 8, 10, 12, 16(mm) ◆ Surface treatment: Blackening treatment Package Includes: 2 Set of 8pcs Drill Limited Ring Set with Wrench 100% Satisfaction Guarantee: ● If the goods are defective or have other problems, please feel free to contact us by email. ● We will try our best to meet your needs. ● We will answer your questions as soon as possible. ● If you are not satisfied with our products, we can give you a 100% refund. ● We strive to provide you with the best quality products and the best products. service, your satisfaction is our highest priority!!!