9 Piece Drill Bit Stop Collar Set with Positioning Rings

Features & Specifications:
• Practical drill bit depth fixed ring.
• 9 pcs in 1 set, with hex wrench, Useful positioner for woodworking.
• Features: Locator Ring, Easy to Use, Drill Bit Depth Stop Collars
• Size: φ3mm,φ4mm,φ5mm,φ6mm,φ8mm,φ10mm,φ12mm，φ16mm

Inclusions:
• 8 x Drill Bit Fixed Rings
• 1 x Hex Wrench