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Silver straight pneumatic die grinder with safety-lock throttle lever and multiple collet inserts

DYNABRADE

DYNABRADE 52677 Straight Die Grinder 1 hp 20000 RPM

SKU CH-CBCF-8NDH6

Heavy-duty straight die grinder delivers 1 hp at 20,000 RPM with safety-lock throttle and includes 1/4 in, 3/8 in, 6 mm and 8 mm collet inserts

  • 1 hp motor delivers high torque for heavy-duty grinding
  • 20000 RPM maximum speed enables fast material removal
  • Safety-lock throttle lever prevents accidental start-up
  • Includes 1/4 in, 3/8 in, 6 mm and 8 mm collet inserts
  • 3/8 in NPT female air inlet connects to standard shop supply

DYNABRADE 52677 Straight Die Grinder

The DYNABRADE 52677 is a heavy-duty pneumatic straight die grinder rated at 1 hp with a maximum speed of 20000 RPM. It features a 3/8 in NPT female air inlet and ships as a bare tool with four collet inserts covering 1/4 in, 3/8 in, 6 mm and 8 mm sizes. A safety-lock throttle lever is included for operator protection.

Who this suits and who should look elsewhere

This grinder suits metalworkers and fabricators who need a high-speed straight tool for deburring, porting or finishing with a choice of collet sizes. It is not for users without access to a compressed-air system capable of delivering the required flow. Buyers needing an angled head, electric drive or built-in speed control should consider other tool styles.

Deciding specification: 20000 RPM maximum speed

The 20000 RPM no-load speed determines whether the grinder can meet the surface-speed demands of carbide burrs and mounted points in hard materials. Verify that your air supply and accessory ratings align with this figure before purchase.

Highlights

  • 1 hp motor delivers high torque for heavy-duty grinding
  • 20000 RPM maximum speed enables fast material removal
  • Safety-lock throttle lever prevents accidental start-up
  • Includes 1/4 in, 3/8 in, 6 mm and 8 mm collet inserts
  • 3/8 in NPT female air inlet connects to standard shop supply

Specifications

BrandDYNABRADE

Questions about this item

Will the 3/8 in NPT female air inlet connect to my existing compressor hose without an adapter?

The grinder has a 3/8 in NPT female air inlet; match it to your hose fitting or use the correct NPT adapter for your supply line.

How can I confirm the 1 hp motor reaches 20000 RPM under load after installation?

Verify air pressure at the tool meets spec, then listen for steady high-speed operation without bogging when the collet engages the workpiece.

Which collet inserts are included in the box and what must I purchase separately for other shank sizes?

The kit ships with 1/4 in (50013), 3/8 in (50014), 6 mm (50016) and 8 mm (50039) collet inserts; any other shank size requires a separate insert.

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