Great for many European makes, E. G. BMW Brakes, transmissions, etc. U-joint design allows access in difficult areas Pro tip: for a better "bite, " apply a small amount of valve lapping compound (CTA 2219) to the bit end before placing on screw - California prop 65 - warning, this product contains chemicals known to the state of California to cause cancer, birth defects or other reproductive harm.Features Great for many European makes, E. G. BMW brakes, transmissions, etc. U-Joint design allows access in difficult areas Pro tip: for a better "bite, " apply a small amount of valve lapping compound (CTA 2219) to the bit end before placing on screw Torx size: E10 3/8" square drive Fit type: Universal Fit Specifications Manufacturer : CTA Tools Brand : CTA Tools Model : CTA Tools 9226 E-Series U-Joint Torx Socket - E10 Item Weight : 2.4 ounces Package Dimensions : 5 x 1.85 x 0.71 inches Item model number : 9226 Manufacturer Part Number : 9226 Cover Included : E-Series U-Joint Torx Socket - E10 ASIN : B012UTSTT2 Customer Reviews : 4.4 out of 5 stars 131 ratings 4.4 out of 5 stars Best Sellers Rank : #540,251 in Automotive (See Top 100 in Automotive) #632 in Tool Sets (Automotive) Date First Available : July 29, 2015