SEWA20 Grinder Wrench
SEWA20 adjustable grinder wrench with blue handle and black metal head in front of its product packaging box.
SEWA20 grinder wrench showing 7.4-inch length and universal compatibility for angle grinders.
Angle grinder used with SEWA20 grinder wrench for replacing locknuts and discs.
SEWA20 grinder wrench featuring a blue rubber-dipped handle for a firm, protective grip.
SEWA20 grinder wrench with carbon steel body and heat-treated pins, featuring a blue ergonomic handle.
SEWA20 adjustable grinder wrench with blue handle and black metal head in front of its product packaging box.
SEWA20 grinder wrench showing 7.4-inch length and universal compatibility for angle grinders.
Angle grinder used with SEWA20 grinder wrench for replacing locknuts and discs.
SEWA20 grinder wrench featuring a blue rubber-dipped handle for a firm, protective grip.
SEWA20 grinder wrench with carbon steel body and heat-treated pins, featuring a blue ergonomic handle.
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SEWA20 Grinder Wrench

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SEWA20 Grinder Wrench

Key Features

  • Adjustable pin spacing from 10mm to 30mm (0.5 in to 1.6 in)
  • Constructed from high-carbon steel for durability
  • Overall length: 200mm (7.87 in)
  • Cushioned handle for improved grip and comfort
  • Designed for tightening and loosening lock-nuts on various power tools

Replaces / Cross-Reference Part Numbers

  • SEWA20

Compatibility & Fitment

  • Fits most angle grinders, bench grinders, circular saws, and mitre saws that use a two-hole lock-nut system within the tool's adjustable range.
  • Compatible with grinders from brands including Makita, Dewalt, Bosch, Hitachi, Milwaukee, and Metabo.
  • Confirmed fit for Dewalt models 1700A and 1701A.

When to Replace

  • The original wrench supplied with the power tool is lost or damaged.
  • Existing wrench pins are bent, broken, or excessively worn, preventing a secure fit.
  • The adjustment mechanism on the current wrench is stripped or no longer functions.

Installation Tips

  • Always disconnect the power tool from its power source before changing accessories.
  • Adjust the wrench pins to match the hole spacing on the flange or lock-nut.
  • Ensure the pins are fully seated in the holes before applying turning force.
  • Apply firm, steady pressure to loosen or tighten the nut. Do not use extensions or strike the wrench with a hammer.
  • After installing a new accessory, confirm the lock-nut is securely tightened before operating the tool.
Color
‎As Pictured
Brand
‎BlueStars
Material
‎Carbon Steel
Item Length
‎7.4 Inches
Item Weight
‎3.5 Ounces
Item Package Quantity
‎1
Head Style
‎Flex
Operation Mode
‎Mechanical
Manufacturer
‎BlueStars
Part Number
‎SEWA20
Item Weight
‎3.5 ounces
Is Discontinued By Manufacturer
‎No
Style
‎Pack of 1
Power Source
‎electric
Special Features
‎heavy-duty, lightweight, variable-speed
Included Components
‎1 x SEWA20 Adjustable Lock-nut Grinder Wrench
Batteries Included?
‎No
Batteries Required?
‎No

FAQ

This wrench is designed to be compatible with a wide range of angle grinders from major manufacturers, including Makita, Dewalt, Bosch, Hitachi, Milwaukee, and Metabo.
The SEWA20 features an adjustable span ranging from 0.5 inches to 1.25 inches (approximately 10mm to 30mm), allowing it to fit various lock-nut sizes.
While it is a universal-style adjustable tool, it is specifically confirmed for use with Dewalt models 1700A and 1701A, in addition to the broader range of grinders from the brands listed.
You should replace your wrench if the original has been lost, if the pins have become bent or rounded, or if the adjustment mechanism no longer holds the pins securely in place. Using a worn or ill-fitting wrench can lead to slipping and potential damage to the lock-nut or the grinder spindle.