Works on steel, brass, aluminum, plastic, wood and other materials. 1/4 round shank. This high speed countersink has a 5 flute rose pattern for chatter free countersinking on steel, brass, aluminum, plastic, wood, and other materials. It is made of high-speed steel with five flutes. 82 degree point angle. It has a 1/4 round shank in size 1/2 . - General Tools 1/2-Inch Countersink Bit///brand_for_product_detail=General,close_out=No,companydescription=General - Imported,condition=New,condition_google=new,cost=2.540000,countrymade=Imported,country_flag=no_selection,featured=0,flag=no_selection,identifier_exists=0,instock=in stock,manufacture_country=Imported / Other,product_image_size=Default,product_page_type=Default,shopping_ad_bestseller=No,smart_campaign_bestsellers=Rest of Smart Campaign Products,square_product_image=https://square-production.s3.amazonaws.com/files/e36a873f0854557606107a9d0c606db50f40bf1b/original.jpeg,square_updated_at=0,store_price=3.450000,sw_featured=No,url_path=general-tools-1-2-inch-countersink-bit
