✨ New Arrivals Just Dropped!Explore
Irwin 10239, Unibit Step Drill #9, Fractional Self-Starting (HSS)
- Ideal for drilling holes into thin materials such as stainless steel, copper, brass, aluminum, plastic and laminates
- Single-flute cutting edge for greater control through steps
- Patented single-flute cutting edge gives the user a true round hole every time
- 3 faltted shank prevents slipping in drill chuck
- New speedpoint tip penetrates faster than previous unibits and prevents walking
Product Information
Product Information
Shipping & Returns
Shipping & Returns

Irwin 10239, Unibit Step Drill #9, Fractional Self-Starting (HSS)
Irwin 10239, Unibit Step Drill #9, Fractional Self-Starting (HSS)
- Ideal for drilling holes into thin materials such as stainless steel, copper, brass, aluminum, plastic and laminates
- Single-flute cutting edge for greater control through steps
- Patented single-flute cutting edge gives the user a true round hole every time
- 3 faltted shank prevents slipping in drill chuck
- New speedpoint tip penetrates faster than previous unibits and prevents walking
$22.81
Original: $65.18
-65%Irwin 10239, Unibit Step Drill #9, Fractional Self-Starting (HSS)—
$65.18
$22.81Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
- Ideal for drilling holes into thin materials such as stainless steel, copper, brass, aluminum, plastic and laminates
- Single-flute cutting edge for greater control through steps
- Patented single-flute cutting edge gives the user a true round hole every time
- 3 faltted shank prevents slipping in drill chuck
- New speedpoint tip penetrates faster than previous unibits and prevents walking
















