Best Groco in 2026

Made by Gross Mechanical Labs (Groco)

Cast bronze with 1/4" diameter stainless steel pins on one side and 5/16" pins on the other side

Opens to fit deck plates and strainer covers with key holes up to 7" apart

NPS Thread With Hose Connection.

#316 Stainless Steel.

UL Listed 647B.

NPS Thread With Hose Connection.

C83600 Bronze.

UL Listed 647B.

New

NPS Thread With Hose Connection.

C83600 Bronze.

UL Listed 647B.

New

Groco 2" High Speed Thru-Hull Fitting with Nut - HSTH-2000-W

Groco 1 1/4" Stainless Steel Thru-Hull Fitting with Nut - TH-1250-WS

PREMIUM - Precisely machined HEX & Torx sizes. Crafted and Designed with superior materials for increased torque and unmatched hardness.

DURABLE - Industrial grade, heat treated S2 alloy steel will increase turning power. Heavy-duty, will outperform the regular cr-v or common carbon materials.

LONGEVITY - Manganese Phosphate coating for rust and corrosion protection. Plus, the chamfered edges and ball end design will provide up to 25-degree angle entry.

Removable Power Tools Accessory Case

Quick Release, 72 Tooth Ratchet for high torque ratcheting

Durable anti-slip vinyl grip bit driver with maximum comfort.

PRECISE - Ships pre-calibrated to +/- 4% accuracy and ready to use. Include calibration certificate with traceable serial number.

DURABLE - Reinforced ratchet gear head constructed from hardened, heat-treated Chrome Vanadium alloy steel.

LONGEVITY - Rust & corrosion protection with our unique and newly invented Electro-Black finish treatment.

measurement_system

Extremely robust and durable

Suitable for 1/4" hex bits under DIN 3126-C 6,3 and E 6,3, ISO 1173 and Wera series 1 and 4, Wera Adaptor 870/1 for 1/4" sockets

Includes 15-pc. combination wrenches: 1/4, 9/32, 5/16, 11/32, 3/8, 7/16, 1/2, 9/16, 5/8, 11/16, 3/4, 13/16, 7/8, 15/16, 1 in.; Roll-up storage pouch

Open end is angled 15 degrees so the wrench can be flipped over to engage fasteners twice as often in tight spaces

12-point box end doubles the access angles of a 6-point and is offset 15 degrees to create clearance for fingers

Applications of this adjusting tool include Ducati 1098, 1198, Streetfighter-1098, Multistrada 1200, Monster 1200, 1199, Diavel and all other Single Sided Large Axle Swingarms

Use alone or with a 3/8"D wrench for the adjustment of the drive chain on motorcycles fitted with single sided swinging arms

Alternative to 88713.1038 or 887131038. Manufactured precisely to fit the eccentric spanner nut

CORROSION RESISTANCE: Full Polish Chrome Finish

QUICK ENGAGEMENT: 12 Point Box End with fastener

ADDITIONAL KNUCKLE CLEARANCE: 15° Box End Offset

Set Includes: 5/32, 3/16, 7/32, 1/4, 5/16, 3/8"

Individually tested to 10,000 volts AC and rated to 1,000 volts AC for safety and peace of mind

Black oxide finish for corrosion protection

Drop forged and heat-treated carbon steel construction with a corrosion-resistant satin chrome plated finish

Precision-machined slide jaw and worm gear allows for exact fastener fit and smooth adjustment

Adjustable wrench can take on bicycle repair and furniture assembly

Dimension: 39mm

Knurled jaw adjustment screw

Material: chrome vanadium steel

LIFETIME WARRANTY WITH SUNEXPRESS: Get in the express lane with the industry’s leading warranty program and exchange warranted products directly with Sunex.

CR-MO STEEL: Provides the strength and flexibility to handle high torque impact tools.

RADIUS CORNER DESIGN: Reduces wear and increases torque on fasteners by placing force on fastener walls rather than fastener corners.

Includes 8-pc. stubby combination wrenches: 5/16, 3/8, 7/16, 1/2, 9/16, 5/8, 11/16, 3/4 in.; Wrench holder

Short length and a slim body make it easy to operate in areas with limited room

Open end is angled 15 degrees so the wrench can be flipped over to engage fasteners twice as often in tight spaces

15° offset for better access in tight spaces

Off-corner loading design on box end provides better grip and reduces fastener rounding

Long pattern beam length for improved reach, leverage and torque

Gearwrench's off-corner loading design has an open end, stronger grip, reduces fastener rounding, and has up to 25% more torque

Gearwrench's Wrench Set has an off-corner loading design on box end for better grip and reduced fastener rounding

15° offset box end for better access

Solution to the extraneous rust problem: fasten stainless screws with stainless tools

Hex-plus allows hexagonal socket screws to live longer

Stainless l-keys prevent extraneous rust on stainless screws

Combination Wrench Set Comes with Lockable Stacking Cases

Stamped hashmark pattern on SAE combination wrench set handle provides added grip points.

Longer panel design gives more torque during use.

Extra-wide opening jaws with shorter handle for maximum access in confined areas

True ergo design, with thermoplastic handle and larger grip width

Ideal for plumbers, electricians, and maintenance workers

Extra-wide opening jaws with shorter handle for maximum access in confined areas

True ergo design, with thermoplastic handle and larger grip width

Ideal for plumbers, electricians, and maintenance workers

Includes 15-pc. inch combination wrenches: 1/4, 9/32, 5/16, 11/32, 3/8, 7/16, 1/2, 9/16, 5/8, 11/16, 3/4, 13/16, 7/8, 15/16, 1 in.; 15-pc. metric combination wrenches: 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22 mm; Roll-up storage pouches

Open end is angled 15 degrees so the wrench can be flipped over to engage fasteners twice as often in tight spaces

12-point box end doubles the access angles of a 6-point and is offset 15 degrees to create clearance for fingers

15° offset for better access in tight spaces

Off-corner loading design on box end provides better grip and reduces fastener rounding

Long pattern beam length for improved reach, leverage and torque

Long Pattern Length

Offset Box End for Increased Access

Surface Drive Plus on Open End: Stronger Grip, Reduces Fastener Rounding