Woodworking Drill Stop Retaining Ring 8 Mm Steel Adjustment Rings Thread Locking Ring T8 Depth 12 Pack Drill Stops Depth stop rings consists of a pack of 12 with the dimensions: inner diameter: approx., 8., 3 mm., Outer diameter: approx. 10 mm Bra Strap Adjustment Buckle Gold and Ring 500 pcs/Pack... 8mm, with 1 Allen key. Std Wall, M12-1.75 Int Thrd Sz, Self Locking Thread Insert - 807TA7|EZ Depth limiter adjusting ring can be used with ceramic wall drills, twist drills and multi-function drills. Depth stop for drill is attached to the drill bit to limit drilling depth. With 8mm drilling depth limiter, adjusting rings, and clamping rings, it fits perfectly with T8 screws. The kit includes thread locking rings, screws and an Allen key, ideal for precise work Thread locking ring material: carbon steel depth stop rings quantity: 12 positioners + 1 hex key depth stop for drill colour: silver 12 depth stop rings size: inner diameter: approx., 8., 3 mm., Outer diameter: approx. Thread locking ring is made of carbon steel and has been oxidised to prevent rust. 16 mm depth limiter adjusting ring.