New Old Stock IRWIN Unibit #2 HSS made in USA 10232 Step Drill Bit, 3/16" to 1/2" in 6 steps Hazet 18" and 24" blades only

18" and 24"  blades only

These scrapers are now only available from Mac who sells the exact same model but with the Mac name

This creates a lower co-efficient of friction between the moving parts than chucks with both hard master jaws and hardened scrolls

Beautifully machined

13 mm    140mm length Hex Socket: 5

New Old Stock IRWIN Unibit #2 HSS made in USA 10232 Step Drill Bit, 3/16" to 1/2" in 6 steps Hazet 18" and 24" blades onlyIRWIN Unibit made in USA Model 10232 Step Drill Bit, #2, 3 16" to 1 2" in 6 steps The IRWIN Unibit 10232 Step Drill Bit #2 (3 16" 1 2" diameter in 1 16" increments) is designed to drill perfectly round holes in thin materials like Stainless Steel, Copper, Brass, Aluminum, Plastic And Laminates with less effort than other bits. It also drills through wood, composition board plus plexiglass and plastics that often crack with conventional bits. The high