6mm stepped drill bit for clutch facing brake lining drill

6mm stepped drill bit for clutch facing brake lining drill  

Item Name	stepped drill bit
Size	17x8.7, 16.5*8 mm
Application	specially for brake lining drill
Quality level	we're leading manufcaturers group for performance brake system parts over 20 years, full range sizes step drill bits for brake linings.
	carbide drill bits for European and American market,and also including Asia,middle-east market,south america in varous quality;
Payment Terms	T/T 30% deposit, balance be paid one week before delivery;
	(RMB, US Dallors and Euro all be accepted.)
Brand packing	we can make carbide drill bits as per customer's samples, drawings and packing.

   What are step drill bits?  Step drills are drill bits that are shaped like a cone and are comprised of multiple sizes, or steps, in a single package. These can be anywhere from two to 13 different bit sizes in increments of 1/32 inch to 3/4 inch, or 4 to 12 millimeters. The user simply starts the drill bit into the part to be drilled and pushes the bit in until the desired size hole has been drilled. The benefit is a step drill bit is that most are rated to last up to six times longer than a conventional drill bit. Step drills/drill bits are not intended for use on wood, however. One particular use for these drills is with sheet-metal work. When the need for multiple sized holes would require the user to change drill bits over and over, step drills save time and expense in many cases over conventional drill bits. Use a drill bit with step increments slightly larger than the materials thickness that is to be drilled. By design, these drills are limited to use on thin material.  Tungsten carbide drill bits, Step Drill Bits For Brake Linings  JIANGSU GREAT INDUSTRIALS GROUP CORP, LTD 1994, Yancheng Great Auto Parts Corp.Ltd established, producing clutch and brake spare part.

2003, Yancheng Great Foreign Trade Corp.Ltd established, mainly exporting clutch and brake spare parts,automotive belts,shock,filter,spark plug etc to International Market.

2010, Jiangsu Great Industrials Group Corp.Ltd established and joined with 5 factories and 3 branch companies in China,Dubai,Iran producing and supplying clutch system ,brake system parts,belts, filter, gasket and shock absorbers worldwide for both OEM car makers and after market.