Black & Decker 9407TY2 bench grinder Parts

An 8-inch bench grinder is better for most heavy-duty grinding and tool sharpening because the larger wheel runs cooler at the edge and gives a shallower hollow grind; a 6-inch grinder is better when you want a smaller, lighter, lower-cost setup. For a Black & Decker 9407TY2 bench grinder, choose based on your typical jobs and available bench space.

Quick comparison (6-inch vs 8-inch)

Feature	6-inch bench grinder	8-inch bench grinder
Best for	Light grinding, quick touch-ups, small shops	Frequent sharpening, heavier grinding, larger tools
Wheel effect on edges	Deeper hollow grind	Shallower hollow grind (often preferred for chisels and plane irons)
Heat control	More likely to heat the edge quickly	Typically runs cooler at the edge for the same pressure
Footprint	More compact	Larger and heavier
Typical motor feel	Adequate for light work	Usually stronger for sustained work

How we recommend choosing

• Pick 8-inch if you sharpen woodworking tools often (chisels, plane irons) or grind thicker steel.
• Pick 6-inch if you mainly deburr, shape small parts, or only sharpen occasionally.
• Prioritize a solid tool rest and wheel guards; control matters more than wheel size.
• Choose the right wheel grit: coarse for shaping, finer for sharpening and finishing.
• If overheating is a concern, use lighter pressure and dip the tool in water frequently.

Why it matters

Wheel diameter changes the grind geometry and heat buildup. A larger wheel generally removes metal with less aggressive curvature at the edge, which helps you keep better control when sharpening and reduces the chance of bluing (overheating) the cutting edge.

Helpful DIY tip for troubleshooting grinder power issues

If your grinder struggles to start, trips a breaker, or loses power under load, basic electrical checks (cord, switch, connections) can save time before replacing parts. Use a meter and safe testing practices from how to use a multimeter to test electrical parts video.

Last updated: February 2026

For the Black & Decker 9407TY2 bench grinder, the 4 most important rules are: wear proper eye and face protection, keep guards and tool rests correctly adjusted, use the correct grinding wheel speed rating, and keep hands, clothing, and hair safely away from the wheel and rotating parts.

The 4 rules (with what to do)

• Protect your eyes and face: Wear safety glasses plus a face shield; grinding sparks and wheel debris can cause serious injury.
• Set up guards and tool rests correctly: Keep the tool rest close to the wheel (typically about 1/8 inch) and keep the tongue guard/spark guard properly positioned.
• Match wheel rating to grinder speed: Only use a wheel rated at or above the grinder’s RPM; never install an underrated wheel.
• Keep clear of rotating parts: No loose sleeves, gloves near the wheel, jewelry, or untied long hair; maintain a stable stance and keep fingers away from the wheel.

Quick safety checklist before you grind

• Inspect the wheel for chips or cracks; replace damaged wheels.
• Confirm the wheel is seated and tightened correctly, then stand to the side at startup.
• Let the grinder reach full speed before contacting the wheel.
• Grind on the face of the wheel (not the side) unless the wheel is specifically designed for side grinding.
• Use light pressure; forcing the work can overheat the wheel and increase break risk.

Setup targets (typical bench grinder guidance)

Item to check	Typical target	Why it matters
Tool rest gap	~1/8 in.	Reduces the chance the workpiece gets pulled into the wheel
Wheel RPM rating	Rated RPM ≥ grinder RPM	Helps prevent wheel failure
Startup position	Stand off to the side	Protects you if a wheel fails at startup

Why it matters

Bench grinders remove metal fast and can throw sparks, hot fragments, and wheel debris. Correct guard adjustment, wheel selection, and PPE reduce the most common causes of injury: eye impacts, pulled-in workpieces, and wheel breakage.

Related DIY help

For electrical troubleshooting basics (useful if your grinder won’t start or trips a breaker), see how to use a multimeter to test electrical parts video.

Last updated: February 2026

For the Black & Decker 9407TY2 bench grinder, do not grind soft or gummy materials (wood, plastic, many non-ferrous metals) and do not use cracked or incorrect wheels. Avoid unsafe setup and clothing choices because wheel loading, grabbing, and wheel failure happen fast.

Materials and items to avoid grinding

Avoid using a standard bench grinder wheel on:

• Wood or plastic (melts, burns, loads the wheel)
• Aluminum, copper, brass (smears and clogs many wheels)
• Magnesium (dust can ignite; high fire risk)
• Oily, painted, or solvent-soaked parts (smoke, fouling, fire risk)
• Unknown metals (identify the material first)

Unsafe wheel, setup, and technique

Do not run the grinder when any of these apply:

• Wheel is dropped, cracked, chipped, or out-of-round
• Wheel type is not rated for the material or task (including side grinding)
• Tool rest gap is too large (work can get pulled down)
• Guards, eye shields, or spark deflectors are missing or loose
• You adjust rests or guards while the wheel is spinning

Quick reference

Don’t use it for	What can happen	Better approach
Wood, plastic	Loading, grabbing, burning	Sander, file, saw
Aluminum, brass, copper	Wheel loading, heat, chatter	Belt sander, file, non-ferrous-rated abrasive
Cracked/dropped wheel	Wheel failure	Replace wheel before use

Why it matters

A loaded or damaged wheel runs hotter and vibrates more, which increases grabbing and loss of control. Keeping the wheel correct and the setup tight improves cut quality and reduces injury risk.

For basic electrical checks (cord, switch, continuity), use how to use a multimeter to test electrical parts video.

Last updated: February 2026