Skip to Main Content
Canadian
Canadian owned and operated

Walter HP Combo 4-Inch Cut and Grind Wheel

$7.48/ea $118.75/25 per each only $4.75/eaSave 36%

Usually ships within 3-5 business days

OVERVIEW

Stop Changing Wheels: Cut and Grind with One Tool

As a welder, your workflow is everything. Every time you have to stop, unplug your grinder, find the pin wrench, and swap a zip wheel for a grinding rock, you're losing rhythm and time. The Walter 08B402 HP Combo Wheel is designed to keep you working. This 4-inch wheel is the ultimate multi-tasker for your angle grinder, allowing you to cut, notch, groove, and grind without ever changing the accessory. It is the perfect companion for fit-up work where you need to trim a piece of metal and then immediately bevel the edge for a root pass.

The secret lies in the 1/8-inch thickness and the reinforced Type 27 design. Standard cutting wheels are too thin and brittle for grinding; applying side pressure to them is a recipe for a dangerous explosion. Grinding wheels, on the other hand, are too thick and slow for efficient cutting. The HP Combo hits the sweet spot. It is reinforced to safely handle the side pressure of light grinding, deburring, and chamfering, yet it remains thin enough to cut through steel and stainless steel quickly and cleanly. This versatility makes it a favorite for pipe welders and fabricators who need to notch pipes or clean out cracks and porosity before re-welding.

Performance-wise, the Walter HP Combo doesn't just survive; it thrives. It is formulated to resist glazing and loading, even when working on stainless steel. This means the wheel stays aggressive right down to the nub, giving you consistent material removal rates throughout its life. The wheel runs smooth with minimal vibration, which saves your wrists during long days of fabrication. Whether you are grooving out a weld defect, preparing a joint, or just cutting stock to size, this wheel handles it all.

Don't let accessory changes slow down your fabrication projects. Equip your 4-inch grinder with the Walter 08B402 and experience the freedom of a wheel that adapts to your needs. It’s tough, it’s safe, and it’s built for the way you actually work. From the first spark to the final finish, the HP Combo wheel delivers the reliability and speed professional welders expect from the Walter brand.

Additional Information
Brand:Walter Surface Technologies
Diameter:4"
Thickness:0.125"
Arbor (in):5/8"
Used To Grind:Steel or Stainless
Used To Cut:Steel & Stainless Steel
Wheel Type:Type 27 (Depressed Center)
Product Type:Combo Wheel
Series:HP Combo
Max RPM:15,300
Packaging Description:25 per each

INCLUDED

  • 1 x Walter HP Combo Wheel (4" x 1/8" x 5/8")

APPLICATIONS

  • Cutting steel and stainless steel stock
  • Notching pipe and structural tubing
  • Light grinding and deburring
  • Root pass cleaning in multi-pass welds
  • Grooving and beveling for weld preparation
  • Removing weld defects and porosity

FAQ

Yes, the HP Combo wheel is reinforced to handle side pressure, making it safe for light grinding, deburring, and notching. However, for heavy stock removal over large areas, a dedicated 1/4" grinding wheel may be more efficient.

The 08B402 is designed for use on both steel and stainless steel. It is formulated to cut quickly and grind smoothly on these metals without contaminating stainless steel.

Absolutely. The 1/8" thickness and reinforced design make it an excellent cutting wheel that is significantly more durable than standard thin cut-off wheels.

This wheel is 4 inches in diameter with a 5/8-inch arbor hole, designed to fit standard 4-inch portable angle grinders.

No, this is a bonded abrasive Type 27 wheel. It mounts directly to the grinder using the standard flange and nut; no backing pad is required.

The maximum safe operating speed is typically around 15,300 RPM for 4-inch wheels, but always verify the RPM rating printed on the actual wheel before use.

A Zipcut is thinner (usually 3/64" or 1/32") and designed purely for fast cutting. The HP Combo is thicker (1/8") to allow for both cutting and grinding. Use Zipcut for speed, use HP Combo for versatility.

This is a Type 27 (depressed center) wheel, which allows the locking nut to sit flush or recessed, permitting grinding at flatter angles.

CATALOGUE & SPEC SHEETS

Safety Data Sheet