Made in the USA

8 piece set contains:

1/4″, 5/16″, 25/64″, AND 15/32″ 3 flat shank Pilot Drills

3/8″, 1/2″, 5/8″, and 3/4″ 4 Flute 3Flat Shank SteelHog Hole Hogs for enlarging holes

SteelHog Hole Enlarger Set – Built to Open Holes Fast Without Grab or Chatter

Made in the USA, this 8-piece SteelHog Enlarger Set is purpose-built for one job—cleanly enlarging existing holes without the grabbing, catching, or tool failure common with standard drill bits.

Designed for real-world abuse in steel, truck frames, structural work, and fabrication, SteelHogs combine pilot-guided accuracy with aggressive 4-flute cutting geometry to deliver controlled, high-performance hole enlargement.

What’s Included (8PC Set)

Pilot Drills – 3 Flat Shank:

• 1/4″
• 5/16″
• 25/64″
• 15/32″

SteelHog Hole Enlargers – 4 Flute, 3 Flat Shank:

• 3/8″
• 1/2″
• 5/8″
• 3/4″

What Makes SteelHog Different

No Grab. No Hog-In. No Surprises.
Standard Silver & Deming drills are notorious for grabbing when breaking through thin material. SteelHogs eliminate that problem with a balanced 4-flute design that stays controlled from start to finish.

Pilot-Guided Accuracy
Each enlarger pairs with a dedicated pilot drill, keeping the tool centered and stable while removing material aggressively.

Reamer Replacement Capability
SteelHogs can replace tapered reamers in many applications—especially when removing large amounts of material quickly.

Up to 60% Hole Enlargement
Each tool is designed to significantly increase hole size in a single operation. The included pilot drill defines the minimum starting hole size.

Where These Excel

• Enlarging existing holes in steel and structural materials
• Truck frames and heavy equipment
• Fabrication and field work
• Thin materials where standard drills grab or break
• Large-diameter holes relative to material thickness

Example:
Drilling a 5/8″ hole through 1/4″ steel is where standard drills fail—SteelHogs handle it clean.

Material & Build Quality

• Super Premium Hi-Molybdenum High-Speed Steel (HSS)
• Manufactured to NAS 907 standards
• USA Made for consistent quality and durability
• 3-flat shanks for secure grip in handheld drills

How It Works

SteelHogs are designed specifically for hole enlargement—not initial drilling.

1. Drill pilot hole using included pilot bit
2. Insert matching SteelHog enlarger
3. Open hole smoothly with controlled cutting action

Key Advantages

• Eliminates grabbing and tool breakage
• Faster than reaming in many applications
• Cleaner, more controlled hole enlargement
• Handles thin material without distortion
• Built for production and field use

Important Notes

• Designed for enlarging existing holes only
• Use proper speeds, feeds, and cutting fluid
• Like any cutting tool, improper use can cause failure

Made in USA