#1 HIGH SPEED STEEL DRILL BLANK#1 HIGH SPEED STEEL DRILL BLANK 22800, 3-7/8" OAL, 62-65 HRc, +.0000"/-.0002" These HSS Drill Blanks are specifically made for the manufacturing of twist drills but can be used for many other purposes! They can be used as shafts, arbors, guide rods, rollers, gages, alignment pins, punches, knock-out pins, as well as stock in the manufacturing of specialty tools and instruments. With tight dimensional tolerances of +.0000"/-.0002" on sizes on up to 1/2", +.0000"/-.0003" on sizes from .5001" to 5/8" and +.0000"/-.0005" on sizes from .6251" to 1", they are perfect fo any project needing precise finished ground stock! They have a hardness of 62 to 65 HRc with a 10 microinch finish and are available in inch, letter, number, metric and special diameters and lengths up to 18". Reamer blanks are also available, as are cobalt & carbide blanks and blank sets!
100% Satisfaction Guarantee: At Mansion Tools, we want to be sure that the item you choose is the right one for you. Within 30 days of delivery of your order, you may return any merchandise purchased from Mansion Tools in its original condition with your email order confirmation or packing slip. Restocking fees may apply. On items over $275 shipping within the US, we will even arrange free pick up or pay for returns shipping.