Bondhus 13390 - Hex Tip Graduated Length T-Handle Set of 10 pcs w/ProGuard Finish. Bondhus' ProGuard Finish is a special corrosion resistant finish that uses Bondhus' special dry surface technology. Bondhus' ProGuard Finish is environmentally safe, provides better tool grip and is 5 times more corrosion resistant. Includes sizes: 3/32, 7/64, 1/8, 9/64, 5/32, 3/16, 7/32, 1/4, 5/16 and 3/8. Set comes w/stand..All Bondhus Tools are made with Protanium High Torque Steel, which is up to 20% stronger with more torque and twice the wear resistance of standard steel grades.