HSS BORING BAR SET FOR BORING HEAD

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  • All knurls are produced from M2 (High Speed Steel) and hardened to 62 HRC. All knurls are tested to assure work of uniform precision. Manufacturing tolerances are highly precise for knurl thickness and hole diameter. The hole is always concentric and the patterns on the knurls are created under rolled cut method. We offer knurls of straight pattern, Left hand spiral, Right hand spiral and Cross knurl.
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Description

6 MM / ¼” HSS BORING BAR SET

  • Ordering No. GBH 150 Set of 8 Pc. (Inch)
  • Ordering No. GBH 151 Set of 8 Pc. (mm)
Shank Dia. Overall Length Min. Bore Max. Bore
Inch mm Inch mm Inch mm Inch mm
1/4 6 1-7/8 47 5/32 4 5/16 8
1/4 6 2 50 5/32 4 7/16 11
1/4 6 2-3/16 55 3/16 5 5/8 16
1/4 6 2-9/32 57 3/16 5 11/16 17
1/4 6 2-3/8 60 3/16 5 3/4 19
1/4 6 2-9/16 64 1/4 6 1 25
1/4 6 2-7/8 72 1/4 6 1-5/16 33
1/4 6 3-1/4 81 1/4 6 1-5/8 41

8 MM / 5/16” HSS BORING BAR SET

  • Ordering No. GBH 152 Set of 8 Pc. (Inch)
  • Ordering No. GBH 153 Set of 8 Pc. (mm)
Shank Dia. Overall Length Min. Bore Max. Bore
Inch mm Inch mm Inch mm Inch mm
5/16 8 1-7/8 47 1/4 6 5/16 8
5/16 8 2 50 1/4 6 7/16 11
5/16 8 2-3/16 55 9/32 7 5/8 16
5/16 8 2-9/32 57 9/32 7 11/16 17
5/16 8 2-3/8 60 9/32 7 3/4 19
5/16 8 2-9/16 64 9/32 7 1 25
5/16 8 2-7/8 72 5/16 8 1-5/16 33
5/16 8 3-1/4 81 5/16 8 1-5/8 41

12 MM / ½” HSS BORING BAR SET

  • Ordering No. GBH 152 Set of 8 Pc. (Inch)
  • Ordering No. GBH 153 Set of 8 Pc. (mm)
Shank Dia. Overall Length Min. Bore Max. Bore
Inch mm Inch mm Inch mm Inch mm
1/2 12 2-1/8 53 1/4 6 3/4 19
1/2 12 2-5/8 66 1/4 6 1-1/4 32
1/2 12 2-5/16 58 5/16 8 15/16 20
1/2 12 2-15/16 73 5/16 8 1-9/16 39
1/2 12 2-1/2 62 3/8 10 1-91/8 28
1/2 12 3-1/4 81 3/8 10 1-7/8 48
1/2 12 2-11/16 68 7/16 11 1-5/16 33
1/2 12 3-9/16 84 7/16 11 2-3/16 55
1/2 12 2-7/8 72 1/2 12 1-1/2 38
1/2 12 3-7/8 97 1/2 12 2-1/2 63

 

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