GY-HSS HSS Stub Series Drills

As per IS: 5100

HSS Straight Shank Stub Drills are engineered for high-precision drilling where rigidity and tool longevity are critical. Featuring a shorter overall length than standard jobber drills, these stub drills minimize deflection and breakage, making them an ideal choice for high-torque applications and automated machinery.

Key Features

  • Enhanced Rigidity: The short flute and overall length provide maximum strength, ensuring straighter holes and reduced vibration during operation.
  • Premium HSS Construction: Manufactured from high-grade High-Speed Steel (HSS) and treated with advanced heat treatment technology for consistent hardness and superior wear resistance.
  • Precision Geometry: Ground on state-of-the-art CNC machines to ensure accurate flute geometry and sharp cutting edges for effortless chip removal.
  • Versatile Standards: Designed and manufactured in compliance with IS 5100, DIN 1897, BS 328, and ISO standards.
  • Optimized Cutting Angles: Available in 118° and 135° point angles to suit specific material penetration requirements.
Technical Specifications
  • Standards: IS 5100, DIN 1897, BS 328, ISO
  • Shank Type: Straight Shank
  • Material: High-Speed Steel (HSS)
  • Point Angle: 118° / 135°
  • Drill Type: Stub / Short Series
TECHNICAL SPECIFICATION FOR COARSE PITCH
Size-Diameter (mm) Size-Diameter (inch) Length (mm) Flute Length (mm) Overall
1.50 9 32
1.59 1/16 10 34
1.80 11 36
1.98 5/64 12 38
2.00 12 38
2.20 13 40
2.38 3/32 14 43
2.50 14 43
2.78 7/64 16 46
2.80 16 46
3.00 16 46
3.17 1/8 18 49
3.20 18 49
3.50 20 52
3.57 9/64 20 52
3.80 22 55
3.97 5/32 22 55
4.00 22 55
4.20 22 55
4.37 11/64 24 58
4.50 24 58
4.76 3/16 26 62
4.80 26 62
5.00 26 62
5.16 13/64 26 62
5.20 26 62
5.50 28 66
5.56 7/32 28 66
5.80 28 66
5.95 15/64 28 66
6.00 28 66
6.20 31 70
6.35 1/4 31 70
6.50 31 70
6.75 17/64 34 74
6.80 34 74
7.00 34 74
7.14 9/32 34 74
7.20 34 74
7.50 34 74
7.54 19/64 37 79
7.80 37 79
7.94 5/16 37 79
8.00 37 79
8.20 37 79
8.33 21/64 37 79
TECHNICAL SPECIFICATION FOR COARSE PITCH
Size-Diameter (mm) Size-Diameter (inch) Length (mm) Flute Length (mm) Overall
8.50 37 79
8.73 11/32 40 84
8.80 40 84
9.00 40 84
9.13 23/64 40 84
9.20 40 84
9.50 40 84
9.52 3/8 43 89
9.80 43 89
9.92 25/64 43 89
10.00 43 89
10.20 43 89
10.32 13/32 43 89
10.50 43 89
10.72 27/64 47 95
10.80 47 95
11.00 47 95
11.11 7/16 47 95
11.20 47 95
11.50 47 95
11.51 29/64 47 95
11.80 47 95
11.91 15/32 51 102
12.00 51 102
12.20 51 102
12.30 31/64 51 102
12.50 51 102
12.70 1/2 51 102
12.80 51 102
13.00 51 102
13.20 51 102
13.49 17/32 54 107
13.50 54 107
13.80 54 107
14.00 54 107
14.25 56 111
14.29 9/16 56 111
14.50 56 111
14.75 56 111
15.00 56 111
15.08 19/32 58 115
15.25 58 115
15.50 58 115
15.75 58 115
15.87 5/8 58 115
16.00 58 115