[DETAIL] Geinxurn Drive Guide with Self Retracting Sleeve 3.15 Inches(80mm) 1/4" hexagonal shank Drill Bit Tip Holder and 2inches S2 alloy steel screwdriver bits Hardened chrome vanadium steel construction with zinc plated, durability and shock-resistant Magnet is located inside the tube, Securely holds the bits in place, reduces the possibility of wobble or fall out Extend The Area of Bits Wisdy used [ATTRIBUTES] - Hign-concerned Chemical: None - Features: Dismountable - Screw Head Size: PH1,PH2,PH2, PH3, T15,T20.T25, T25, SQ2, SL#8 - Hign-concerned Chemical: None - Features: Dismountable - Screw Head Size: PH1,PH2,PH2, PH3, T15,T20.T25, T25, SQ2, SL#8 - Origin: Mainland China - is_customized: Yes - Brand Name: Geinxurn - Material: Chrome-vanadium Steel - Package Quantity: 10-19Pcs - Magnetic: Yes