Questions? Give Us a Call

1-800-849-3900
Dillon Supply Item # (8 digits) Qty
Expanded Order Pad
   
25515124
Irwin® Unibit® 10231 Step Drill Bit 1/8 - 1/2 in #1 HSS TiN Coated
Dillon Part #: 25515124
Mfg. Part #: 10231
Pkg Qty: 1EA
Price:
Qty:
 EA
Shipping Availability Terms

Quick Ship: These items are normally stocked within your territory and will be shipped same day if order is placed by 3:00 pm eastern time. Standard ground shipping will be utilized for most items. Items that may be of excessive size will be shipped LTL which may increase delivery time.

Ready to Ship: These items may be in stock either within a Dillon warehouse or at the manufacturer. Standard shipping time will be 3 to 5 business days in most instances. Standard ground shipping will be utilized for most items. Items that may be of excessive size will be shipped LTL which may increase delivery time.

  • Single flute cutting edge for greater control through steps
  • Hex shank prevents slipping in drill chuck
  • New SpeedPoint tip penetrates faster than previous Unibits and prevents walking
  • General purpose
  • Cobalt is harder than high speed steel and provides better wear resistance, commonly used on high tensile alloys
  • Bright provides a smooth, polished finish on the tool, increases chip flow in softer materials such as aluminum, wood and plastic
Type Fractional Self-Starting
Letter/Wire Size #1
Minimum Hole Diameter 1/8 in
Maximum Hole Diameter 1/2 in
Number of Steps 13
Step Depth 1/32 in
Number of Hole Sizes 13
Number of Flutes 1
Shank Size 1/4 in
Shank Type Hex
Point Type SpeedPoint®
Cutting Edge Material M35 HS-Co
Material M35 Cobalt HSS
Finish Bright
Applicable Materials Stainless Steel, Copper, Brass, Aluminum, Plastic and Laminates