We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Red 12-inch groove joint locking pliers with bi-material grips

Craftsman CMHT81721 12-Inch Groove Joint Locking Pliers

SKU CH-RWZD-KM371 MPN CMHT81721

12-inch groove-joint locking pliers grip up to 1" flat and 2.12" pipe with drop-forged steel jaws and bi-material handles

  • Size/Dimensions6
  • MaterialSteel
  • Color/FinishRed
  • FeaturesHolding,Locking Pliers,Gripping
  • Selling Unit1
  • Overall Length2.1082 L x 7.7978 W x 37.6936 H centimeters
  • Comfort and control from multi-zone bi-material grips
  • Strength and durability through drop-forged steel construction
  • Precision-machined jaws ensure secure gripping and holding
  • Corrosion-resistant finish protects against rust and wear
  • 12-inch length with 2.12-inch pipe capacity for versatile use

12-Inch Groove Joint Locking Pliers

The Craftsman CMHT81721 is a 12-inch groove joint locking plier built for mechanics and tradespeople who need a secure, adjustable grip on pipes, nuts and irregular shapes. Drop-forged steel construction and a corrosion-resistant finish support daily professional use.

2.12-Inch Pipe Capacity

The maximum pipe capacity of 2.12 inches is the single specification that determines whether this tool fits the workpiece. If the pipe or fitting exceeds that diameter, the jaws cannot close far enough to lock securely.

Jaw Capacity and Adjustment Range

A 1-inch jaw capacity combined with the groove joint design provides multiple width settings for bolts, fittings and flat stock up to that limit. The tool runs out of adjustment on larger diameter pipe or heavy structural sections beyond 2.12 inches.

Highlights

  • Comfort and control from multi-zone bi-material grips
  • Strength and durability through drop-forged steel construction
  • Precision-machined jaws ensure secure gripping and holding
  • Corrosion-resistant finish protects against rust and wear
  • 12-inch length with 2.12-inch pipe capacity for versatile use

Specifications

BrandCraftsman
ModelCMHT81721
Size/Dimensions6
MaterialSteel
Color/FinishRed
FeaturesHolding,Locking Pliers,Gripping
Selling Unit1
Overall Length2.1082 L x 7.7978 W x 37.6936 H centimeters
Jaw Capacity1"
Handle TypeAlloy Steel
Jaw StyleGroove Joint
Number of Positions1
Handle MaterialSteel
Pipe Capacity2.12 inches
Strap MaterialAlloy Steel
Compatibility/FitmentHolding,Locking Pliers,Gripping
Commercial/ResidentialHolding,Locking Pliers,Gripping
Part NumberCMHT81721

Questions about this item

What does the 12-inch overall length mean for reach and leverage in a real job?

The 12-inch length gives extended reach into tight spots and multiplies hand force for strong clamping on large workpieces.

How does the groove-joint mechanism limit the maximum jaw opening?

The single-position groove joint sets a fixed 1-inch jaw capacity and 2.12-inch pipe capacity, so the pliers cannot open wider than those limits.

What clearance do the 2.1082 cm thickness and 7.7978 cm width need in a tool drawer?

The pliers measure 2.1082 cm thick by 7.7978 cm wide, so they fit in standard drawers but may not clear very shallow organisers.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.