Top 5 Best power extension bit set for drills for sale 2016

1. 3" Impact Grade Socket Adapter/Extension Set | ARES 70000| Turns Power Drill Into High Speed Nut Driver. 1/4", 3/8", and 1/2" Drive. (Click Link to Check Price on Amazon)
Editor's Rating : 9.6 out of 10
Impact Grade, corrosion resistant, adapters ready for the ardent weekend warrior & contractorIncludes 1/4", 3/8", and 1/2" each with a 1/4 inch shank/driver

2. Power Extension Bit Set,TFSeven 3Pcs Hexagonal Shank Extension Socket Adapter Set For Drills - 1/4 3/8 1/2 Sleeve Wind Batch Electric Connection Switching Lever Kits (Click Link to Check Price on Amazon)
Editor's Rating : 9.7 out of 10
Turn Square Head Hexagonal Shank Extension Bar Sleeve Beaded 1/4 3/8 1/2 Sleeve Wind Batch Electric Connection Switching LeverPACKAGE CONTAINS: 3 piece 1 of each Size: 1/4" 3/8" 1/2" Turns any power drill into a power nut driver Sturdy spring-loaded ball bearing holds sockets securely in place Sockets Snap-On Tightly and Won't Slip Off

3. ABN 3 Piece Power Driver Extension Socket Adapter Set (Click Link to Check Price on Amazon)
Editor's Rating : 9.3 out of 10
Set Includes: (1) 1/4" Hex x 1/4" Drive, (1) 1/4" Hex x 3/8" Drive, (1) 1/4" Hex x 1/2" Drive.Constructed with chrome vanadium steel for strength and durability.

4. TEKTON 2902 Power Driver Extension Socket Adapter Set, Cr-V, 3-Piece (Click Link to Check Price on Amazon)
Editor's Rating : 8.8 out of 10
Sandblasted chrome vanadium steelSpring-loaded ball bearing locks onto sockets

5. Dophee 8Pcs Socket Adapter Impact Hex Shank Drill Bits Bar Set 1/4" 3/8" 1/2" Bits New (Click Link to Check Price on Amazon)
Editor's Rating : 9.4 out of 10
Chrome vanadium steel suitable for heavy duty impact drivers. Spring loaded ball bearing on head holds sockets securely.This set is perfect for your impact driver or drill, and allows you to replace your ratchet with a power tool. The 1/4" hex shank fits all quick change chucks as well as standard drill chucks.