1.)HSS saw drill 2.)Material: High Speed Steel 3.)Tin coated 4.)Drilling steel, cast steel, metal 5.) ISO9001 HSS Saw Drill bits, Tinanium coatedSizeFlute LengthL (Allover Length)1/8"335615/32"448753/16"553857/32"656871/4"6.556875/16"86595-9681033/8"107211015/32"12781181/2"1390130 HSS Saw Drill bits, tin coated