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Drill bit sizes

Drill bit sizes not only vary in diameter but in length also. Furthermore there are a number of different scales used for measuring the diameter. They include Metric, Imperial, Wire No./Letter and Decimal.

 

Drill bit size chart

 If you need to see how drill bits sizes compare in the different measurement scales we have a link to a Drill bit size chart / drill bit comparison chart

 

Drill bit tap size chart

If you need to know which drill bit to use for a tap follow link to   Drill bit tap size chart

 

 

 

TTP HARD drills are available in both metric and imperial sizes. See below :

 

  1. Our drill bit sizes available in both metric and imperial
  2. Our drill bit dimensions (overall drill bit length, flute length, diameter and angle point) for each drill bit size in metric and imperial

 

 

 

1.TTP HARD drill bit sizes

 

Metric sizes

 

Metric drill bit sets

19 piece drill bit set (1mm to 10mm x 0.5mm)

25 piece drill bit set (1mm to 13mm x 0.5mm)

 

Metric packs of 10 drill bits

1mm, 1.5mm, 2mm, 2.5mm, 3mm, 3.3mm, 3.5mm, 4mm, 4.2mm, 4.5mm, 5mm, 5.3mm, 5.5mm, 6mm, 6.5mm, 6.8mm

Metric single drill bits

7mm, 7.5mm, 8mm, 8.5mm, 9mm, 9.5mm, 10mm, 10.2mm, 10.5mm, 11mm, 11.5mm, 12mm, 12.5mm, 13mm

Imperial Sizes

Imperial drill bit sets

21 piece drill bit set (1/16″ to 3/8″ x 1/64″)

29 piece drill bit set (1/16″ to 1/2″ x 1/64″)

 

Imperial packs of 10 drill bits

1/16″, 5/64″, 3/32″, 7/64″, 1/8″, 9/64″, 5/32″, 11/64″, 3/16″, 13/64″, 7/32″, 15/64″, 1/4″

Imperial single drill bits

17/64″, 9/32″, 19/64″, 5/16″, 21/64″, 11/32″, 23/64″, 3/8″, 25/64″, 13/32″, 27/64″, 7/16″, 29/64″, 15/32″, 31/64″, 1/2″

2. TTP HARD drill bit dimensions

metric / imperial

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