• cobalt steel drill bits USA imperial sizes

TTP Hard Drills - Imperial Sizes

TTP HARD DRILL BITS have been designed for easier and more effective drilling of Metals including the Harder Alloys. TTP Hard Drills are manufactured from tungsten and molybdenum , increased Hardness and with Cobalt added to ensure superior heat resistance these drill bits are Guaranteed to perform in the most demanding of workshop applications .

We sell and deliver TTP imperial and metric sized Cobalt Hard Drills to the UK and the USA - for you assurance we use Paypal for transactions on this site.

Select sizes from the drop down - Then hit "Add to cart" if more sizes required just continue to select from the dropdown menu-

1/16 - 1/4 Sold in packs of 10


You will be directed to our shopping payment system to complete your order (new window opens).


17/64 - 1/2 Sold in Singles





21pc - 29pc Imperial Cobalt Drill Bit Sets





Drill Coolant










Looking For METRIC Cobalt drill Bits? view here


Product Information

  • Drills Bits
  • Drill Sets
  • Cutting / Cooling Paste

(SOLD IN Drill Bit PACKS OF 10 )1/16 - 1/4 Imperial Drill bits Bit Sizes. (1/16 - 5/65 - 3/32 - 7/74 - 1/8 -9/64 - 5/32 - 11/64 - 3/16 - 7/32 - 15/64 - 1/4)

(SOLD in SINGLES ) 17/64 TO 1/2 imperial sized cobalt drill
(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)

21 Pce Cobalt Drill Bit Set 1/16 to 1/2 (21pc imperial sized cobalt drill bit set)
(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 - 17/64 - 9/32 - 19/64 - 5/16 - 21/64 - 11/32 - 23/64 - 3/8 )

29 Pc Cobalt Drill Bit Set 1/16 to 1/2 (29pc imperial sized cobalt drill bit set)
(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 - 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)

3 - TTP CUT-IT cutting paste - High quality lubricant for drilling and cutting. Developed by Tough Technology Products CUT-IT is a high quality metal and drilling cooling lubricant in paste form, suitable for reaming, tapping drilling and metal forming. CUT-IT provides outstanding separation and cooling effect when drilling, increases the life of tools and is suitable for all metals.

500Ml


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