Zhenjiang Scharp Machinery Tools Co., Ltd.  

Product Name: High Speed Steel Combined Drills&Countersinks Usage: metal Drilling Material: High Speed Steel Type: Center Drill Bit Length: Jobber-length Standard: JIS, AISI Size: No 0 to No10 Trademark: stc Transport Package: Plastic Box Specification: NO 0 to No 10 Origin: Jiangsu HS Code: 82075090 Product Description We only use super high speed steel to make this drill bits.kinds of coating available. tin, tialn .specical design available on request.taper shank available on request.regular length and long length available.STC036-1, INCH SIZE COMBINED DRILLS & COUNTERSINKS ( CENTER DRILL )ANSI / ASME B94.11 M-1993PLAIN TYPE, 60° Angle, GroundSizeBody DiameterDrill DiameterOverall LengthPict01/8"1/32"1-1/8"11/8"3/64"1-1/4"23/16"5/64"1-7/8"31/4"7/64"2"45/16"1/8"2-1/8"4-1/23/8"9/64"2-1/2"57/16"3/16"2-3/4"61/2"7/32"3"75/8"1/4"3-1/4"83/4"5/16"3-1/2"97/8"11/32"3-5/8"101"3/8"3-3/4"BELL TYPE, 60° / 120° Angle, Milled / GroundPictSizeBody DiameterDrill DiameterOverall Length111/8"3/64"1-1/4"123/16"1/16"1-7/8"131/4"3/32"2"145/16"7/64"2-1/8"157/16"5/32"2-3/4"161/2"3/16"3"175/8"7/32"3-1/4"183/4"1/4"3-1/2"197/8"5/16"3-5/8"201"3/8"3-3/4"STC037, INCH SIZE COMBINED DRILLS & COUNTERSINKS, Long SeriesPLAIN TYPE.SizeBody DiameterDrill DiameterOverall Length60° Angle1A1/8"3/64"3"1B1/8"3/64"4"Pict1C1/8"3/64"5"1D1/8"3/64"6"2A3/16"5/64"3"2B3/16"5/64"4"2C3/16"5/64"5"2D3/16"5/64"6"3A1/4"7/64"3"3B1/4"7/64"4"3C1/4"7/64"5"3D1/4"7/64"6"4A5/16"1/8"3"4B5/16"1/8"4"4C5/16"1/8"5"4D5/16"1/8"6"5B7/16"3/16"4"5C7/16"3/16"5"5D7/16"3/16"6"6B1/2"7/32"4"6C1/2"7/32"5"6D1/2"7/32"6"75/8"1/4"6"83/4"5/16"6"