$68.99 Drillpro 8pcs 1/2 inch shank hss 4241 twist drill bit set 9/16 to 1 inch twist drill for wood 
29 PC LEFT-HAND DRILL BIT SET INDEX 1/16 TO 1/2 BY 64ths HUOT USA COBALT 728821485584 | eBay
Easy Use 1/4 3/8 1/2 Steel Drill Bit Bar Hex Socket Driver Shank Adapter Set-in Drill Bits 
