Specifications:- Overall Dimension(Dia. x Length): 1/2” x 13/16” (1.26 x 2 cm)- Sleeve Outer Diameter: 1/4” (0.64 cm)- Sleeve Inner Diameter: 3/16” (0.48 cm)- Sleeve Thickness: 1/16” (0.16 cm)- Drill Bit Length: 3 11/16” (9.3 cm)- Drill Bit Diameter: 1/4” (0.62 cm)- Fit For: 1/8"" and 3/16"" Cable Railing Kit- Material: 316 Stainless Steel- Net Weight: 0.33 Lb (0.15 kg). Package Contents:- 50x Stainless Steel Protector Sleeves- 1x Drill Bit