Twist Drill : Parallel Shank Twist Drills - Jobber Series Parallel Shank Twist Drills - Stub Series Parallel Shank Twist Drills - Long Series Parallel Shank Twist Drills Extra Long Series Taper Shank Twist Drills With Standard Shank Taper Shank Twist Drills With Oversize Shank Taper Shank Twist Drills - Long Series Parallel Shank Core Drills Shell Core Drills Center Drills Sub land Twist Drills Taper Shank Twist Drills - for Taper Pin Holes

High Speed Steel Shell Core Drills High Speed Steel Shell Core Drills With Taper Bore & Slot Drive       Nominal Diameter H8 Diameter of Large end of Taper Blow Overall Length 25     26     27     28     29     30 13 45 31     32     33     34     35     36     37     38     39     40 16 45 42     44     45     46     47     48 19 50 50     52     55     58     60 22 56 65     70     72 27 71 75     80     85 32 80 90     Nominal Diameter H8 Diameter of Large end of Taper Blow Overall Length 95 40 90 100     1     1.1/16     1.1/8 5/8 2.3/4 1.3/16     1.1/4     1.5/16     1.3/8     1.7/16 3/4 3 1.1/2     1.9/16     1.5/8     1.11/16     1.3/4     1.13/16 1 3.1/2 1.7/8     1.15/16     2     2.1/8     2.1/4 1.1/4 3.3/4 2.3/8     2.1/2     2.5/8     2.3/4 1.1/2 4 2.7/8     3     3.1/8     3.1/4 1.3/4 4.1/2 3.3./8     3.1/2     3.5/8     3.3/4     3.7/8 2 5 4     Dimension in mm. Specifications Conform to IS : 7772 - 1975 / ISO 3314 - 1975 These Shell Core Drills have Rh Helical Flutes for Rh Cutting. Taper Bore - Taper 1:30 Specification conform to IS:7823-1983/ISO 3292-1975 FL=flute length     OAL= overall length