Triumph HSS 12" Long Aircraft Drill Bit

Triumph Twist Drill

• 12" long length
• Made of high speed steel - black oxide finish
• 135° split point for precision drilling
• For use in stainless steels, iron & cast materials, low & high carbon steel, hard & softwoods, aluminum, aluminum alloys, brass, bronze - soft & medium, & plastics

• Product Description
• Specs

• 
  

  A special 12" long aircraft twist drill bit made by Triumph Twist Drill Co. These jobber twist bits are made of High Speed Steel to hold their sharp cutting edges longer, & have a black oxide finish. The drill bits have a 135° split point for quick penetration & precision drilling, no walking & no drill bit wandering. These twist bits are for general purpose drilling in a variety of materials. For use in stainless steels, iron & cast materials, low & high carbon steel. May also use in hard & softwoods, aluminum, aluminum alloys, brass, bronze - soft & medium, & plastics.

      Triumph Twist Drill has manufactured High-Quality cutting tools for over 50 years. Starting in 1952, founder Harry Beck set out to provide customers with a product that the drill industry had been lacking. Harry, along with his son Jim and Cy Brock, decided to enter the small drill business and create quality, handmade products with the customer in mind.

• 
  

  Drill Bit  Diameter	Decimal Equivalent	Flute Length	Overall Length	Model
  1/16"	.0625	1"	12"	058504
  5/64"	.0781	1"	12"	058505
  3/32"	.0938	1 - 1/4"	12"	058506
  7/64"	.1094	1 - 1/2"	12"	058507
  1/8"	.1250	1 - 5/8"	12"	058508
  9/64"	.1406	1 - 3/4"	12"	058509
  5/32"	.1562	2"	12"	058510
  11/64"	.1719	2 - 1/8"	12"	058511
  3/16"	.1875	2 - 5/16"	12"	058512
  7/32"	.2188	2 - 1/2"	12"	058514
  1/4"	.2500	2 - 3/4"	12"	058516
  17/64"	.2656	2 - 7/8"	12"	058517
  9/32"	.2812	2 - 15/16"	12"	058518
  19/64"	.2969	3 - 1/16"	12"	058519
  5/16"	.3125	3 - 3/16"	12"	058520
  11/32"	.3438	3 - 7/16"	12"	058522
  3/8"	.3750	3 - 5/8"	12"	058524
  13/32"	.4062	3 - 7/8"	12"	058526
  7/16"	.4375	4 - 1/16"	12"	058528
  15/32"	.4688	4 - 5/16"	12"	058530
  1/2"	.5000	4 - 1/2"	12"	058532