Deburring External Chamfer Tool can fix all bolts and nuts with burr! No need to call anyone for help when somethings need to be repaired anywhere with this tool! Effortlessly shave down the outer edges of a bolt, pipe or rod! It perfectly trims rusted bolts by way of a shearing metal layer by layer, thus simplifying repair process and eliminates the need to replace expensive or hard-to-find hardware. With its safety conscientious design, it means no cut hands, no sparks, and no burns for you. It is made of quality stainless steel with high hardness and outstanding durability. Widely applicable to most materials, including stainless steel, hardened steel, mild steel, copper, brass, etc. Just quickly slap it into your hand drill and start repairing work pieces. FEATURES: Stainless Steel Deburring ToolCan fix all rusted bolts and nuts with burr! No need to call anyone for help when somethings need to be repaired anywhere with this tool! Secure, EffectiveCompact material with 3 shaving teeth - Can ease friction and help effective heat dissipation during deburring. Never Splash on Eyes!Protective shape design blocks the remainders splashing everywhere, also protects your eyes during speedy trimming. Easy To InstallSame as other drill bits, insert into the driller. Deburring effortlessly. Easy to UseUse lowest speed of drill bit, then slightly apply pressure to burr for removing any serious rusted bolts or nuts! Portable, Minimal ShapeEasily carried in your pouch. Quickly slap it into drill and start repairing. High CapabilityWidely apply on stainless steel, hardened steel, mild steel, copper, brass, aluminum, fiberglass, wood, plastic, etc. DIRECTIONS: Same as other drill bits Insert into the driller Deburr any bolt or nut! SPECIFICATIONS: Material: Stainless Steel Fit Size: 8-32 bolts (.164) up to 3/4" - 10 (.750) - (4mm-19mm) Size: Inner diameter 22mm/0.87", outer diameter 28mm/1.1" PACKAGE INCLUDES: 1 x Deburring External Chamfer Tool