Zhenjiang Scharp Machinery Tools Co., Ltd.  

Product Name: 6 Flute Countersink Usage: metal Drilling Material: High Speed Steel Type: Countersink Drill Bit Length: Jobber-length Standard: JIS, AISI Customized: Customized Size: 1/8 to 3 Inch Standards: 64 HRC Trademark: stc Transport Package: Plastic Tube Wood Case Specification: inch and metric Origin: Zhenjiang Jiangsu HS Code: 82075090 Product Description Our6 flute countersink are made from super quality high speed steel M2.hss cobalt available upon request.They are designed for fast shearing and chatterless cuts.They produce an exceptionlly fine finish and can be run at maximum speed.The six cutting edges quickly center in hole and produce a smaller chip load for chatterless machining.special black finish treatment can increas hardness to 64 hrc.widely used in portable applications.ANSI standard and DIN standard.kinds of coating available.kinds of kits (sets) available.Included Angle: 60°, 82°, 90°, 100°Max cut diameterShank DiameterOverall LengthMax cut diameterShank DiameterOverall Length3/16"3/16"1-1/2"3/4"1/2"2-3/4"1/4"1/4"2"7/8"1/2"2-3/4"5/16"1/4"2"1"1/2"2-3/4"3/8"1/4"2"1-1/4"3/4"3-3/8"1/2"1/4"2"1-1/2"3/4"3-1/2"5/8"1/2"2-3/4"2"1"4-3/8"