★【Magnetic Screwdriver Bit Holder】1/4 inch hex shank screws power extension holder is made of chrome vanadium steel, high hardness, large torque and durable. ★【Extension】3pcs 60,100,150mm length and 1/4 inch hex shank, great for extending all kinds of screwdriver bits, drill, batch head, screwdriver head conversion uses. ★【Convenient】Lock the connecting rod with strong magnetic, convenient pick-up and retention of screws. ★【Use for】Magnetic Screwdriver Bit Holder can be used for any type of power drill or driver. ★【Buy with Confidence】We offer "TWO YEAR" warranty on item(s) that confirm to be manufacturer defect.We'll respond within 24 hours on weekdays.(Please clamp the shaft in right place and necessary protective measures in woodworking processing.)Manufacturer: KATUR Model Number: KATUR Package Quantity: 1 Part Number: BT-5112-60-150 Size: 60,100,150mmFeatures High hardness, non-slip, large torque and durable. The screwdriver head can lock the connecting rod with strong magnetic. Great for exchanging the sleeve and the joint, prolonging the connecting rod. 1/4" quick-change hex shanks fit any standard size screwdriver bit, 1/4" impact drivers and hand-held drivers. Widely used in situation of narrow space, to reach the work-place where hands can not reach. Specifications Name: Magnetic Screwdriver Bit Holder Set Balance: +/- .003" tolerance Material: Carbon Steel + Chrome Vanadium Steel Color: Silver and Black Size: 1/4 inch hex shank, 60mm,100mm,150mm length Package includes 3 x Magnetic Screwdriver Bit Holders Note Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you.