Screwdriving, Drilling Accessories - Brand Generic - 8 Packs 1/2""3/8"" 1/4"" Hex Handle Drill Bits Socket Adapter Highlights Brand Generic 8 Packs 1/2""3/8"" 1/4"" Hex Handle Drill Bit Socket Bit Adapter Description: Hex shank prevents stripping during high speed drilling. Durable and practical, high quality smooth finish. Suitable for screwdriver handle or electric screwdriver tool drive sleeve to use. After installation, the original hex size can be converted to square head size. Used in home DIY, carpentry, auto parts, machinery repair, etc. specification: Material: metal Size chart: 1/4*1/4*50mm Length: 1/4'' shank can be converted to 6.35mm square head 3/8*1/4*50mm Length : 1/4'' shank can be converted to 9.53mm square head 1/2*1/4*50mm Length: 1/4'' shank can be converted to 12.7mm square head 1 /4*1/4*65mm Length: 1/4'' shank can be converted to 6.35mm square head 3/8*1/4*65mm Length: 1/4'' shank can be converted to 9.53mm square head 1/2*1/4*73mm Length: 1/4'' shank can be converted to 12.7mm square head 1/4*1/4*25mm Length: the 1/4'' shank can be converted to 6.35mm square head 1/4*1/4*30mm Length: 1/4'' shank can be converted to 6.35mm square head The package include: 8 pcs/set socket bit adapter