4 to 22mm Step Drill

  • Item #C67
  • Price: $5.99
  • Part #KL09447
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In stock, will ship on Thursday, December 8

This 4 to 22mm (.86") step bit is perfect for drilling holes in stainless steel pot for valve installation. A 22mm hole is perfect for ½" bulkhead type fittings, and smaller holes like 4mm and 6mm are perfect for drilling holes in Fermzilla lids.

For best results in stainless drill at less than 600 rpm (slow setting on your drill). If faster settings are used, the stainless will heat up and become harder to drill, and the step bit will wear out prematurely.

Average rating 4 out of 10 ( based on 1 review )

Chinese junk

Review by Phil on 5/24/2021

Title explains it all. These should be made of cobalt. The bit dulled at one of the lowest stops and proceed no further.

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