Free shipping on orders overFree shipping over $250 Lower 48 states and DC. Excludes freight and oversize.

3/8" Deep Impact Socket 21mm - Grey Pneumatic

Part #: 1021MD

The Grey Pneumatic 1021MD 3/8 Inch Deep Impact Socket, 21mm, is a professional-grade tool built for the demanding conditions of automotive and industrial service. This deep, 6-point impact socket provides essential reach and robust engagement for high-torque applications, ensuring reliable performance on modern vehicles and heavy machinery. Crafted from impact-grade chrome-molybdenum steel, it is engineered to withstand the daily stresses encountered in professional workshops and fleet garages.

Key Features

  • Extended Reach 21mm Deep Profile: Offers crucial reach for common metric fasteners found in automotive suspension, subframe, brake, and engine assemblies across a variety of import and domestic vehicles.
  • Impact-Grade Chrome-Molybdenum Steel: Constructed from durable chrome-molybdenum steel, specifically designed to resist cracking and deforming under the repeated high-torque forces of pneumatic and cordless impact wrenches.
  • 6-Point Fastener Engagement: Grips the flats of the fastener to minimize the risk of rounding and enhance torque transfer, particularly on stubborn or corroded hardware.
  • Corrosion-Resistant Finish: Features a protective coating that helps guard against rust and abrasion, contributing to extended tool life in demanding automotive, fleet, and industrial work environments.
  • Precision Fit: Manufactured for accurate sizing, ensuring consistent and secure engagement on 21mm metric fasteners to reduce slippage and rework.

Applications

The 1021MD 21mm deep impact socket is a fundamental addition to any professional metric impact set. It is commonly used for suspension hardware, engine mount and subframe bolts, brake caliper brackets, and various other chassis fasteners on passenger vehicles and light-duty trucks. This socket is suitable for general repair, comprehensive fleet maintenance, and diverse industrial service tasks, performing reliably whether on automotive lifts, in mobile service trucks, or in heavy equipment and machinery applications.

Specifications

  • Manufacturer: Grey Pneumatic
  • Model: 1021MD
  • Drive Size: 3/8 inch
  • Socket Size: 21mm
  • Style: Deep, Impact, 6-point
  • Weight: 0.4 lb
  • Dimensions: 4.8 x 2.15 x 1.15 in
Only 5 left in stock - order soon Inventory available from other suppliers, prices may be different

List Price: $9.98 You save: $2.05Your Price: $7.93

Free shipping on orders over $250
Lower 48 states and DC. Excludes freight and oversize items.
Add to Cart:
  • (image for) Grey Pneumatic
    Other products
    Grey Pneumatic Homepage
  • Model: 124440
  • Shipping Weight: 0.4lbs
  • UPC: 729440461348
  • Manufacturers Part #: 1021MD
  • Manufactured by: Grey Pneumatic
  • Also Known As: GP1021MD, GRE1021MD, GRY-1021MD, GY1021MD

This product was added to our catalog on Friday 08 July, 2011.

Related Products

(image for) 10mm 3/8" Drive 6 Pt Std Universal Metric Impact Socket
10mm 3/8" Drive 6 Pt Std Universal Metric Impact Socket
Grey Pneumatic 1010UM
Your Price: $18.81
List Price: $23.68
21% off
(image for) 3/8" Drive x 14mm Standard Length Universal
3/8" Drive x 14mm Standard Length Universal
Grey Pneumatic 1014UM
Your Price: $19.51
List Price: $24.55
21% off
(image for) 3/8 In Dr Impact Flex Socket, 6 Pt, Deep, 10mm
3/8 In Dr Impact Flex Socket, 6 Pt, Deep, 10mm
Sunex Tools 310UMD
Your Price: $15.18
(image for) 3/8 In Dr Impact Flex Socket, 6 Pt, Deep, 12mm
3/8 In Dr Impact Flex Socket, 6 Pt, Deep, 12mm
Sunex Tools 312UMD
Your Price: $14.01
(image for) 3/8 In Dr 6-Pt Deep Impact Socket - 18mm
3/8 In Dr 6-Pt Deep Impact Socket - 18mm
Sunex Tools 318MD
Your Price: $8.83
(image for) 3/8 In Dr Impact Flex Socket, 6 Pt, Deep, 11mm
3/8 In Dr Impact Flex Socket, 6 Pt, Deep, 11mm
Sunex Tools 311UMD
Your Price: $16.63

Customers who bought this product also purchased...

(image for) 3/8" Drive x 20mm Standard Impact Socket
3/8" Drive x 20mm Standard Impact Socket
Grey Pneumatic 1020M
Your Price: $5.07
List Price: $6.37
20% off
(image for) 3/8" Drive x 22mm Standard Impact Socket
3/8" Drive x 22mm Standard Impact Socket
Grey Pneumatic 1022M
Your Price: $5.15
List Price: $6.48
21% off
(image for) 1/2" Female x 3/8" Male Adapter with Locking Pin
1/2" Female x 3/8" Male Adapter with Locking Pin
Grey Pneumatic 2228AL
Your Price: $18.14
(image for) 14PC 3/8" DRIVE NANO IMPACT SOCKETS - METRIC
14PC 3/8" DRIVE NANO IMPACT SOCKETS - METRIC
Astro Pneumatic 78314
Your Price: $39.61
List Price: $45.2
12% off

Customers Also Shopped For

(image for) Strip Calk - Black - 60-1 Ft Strips
Strip Calk - Black - 60-1 Ft Strips
3M Automotive 8578
Your Price: $31.95
(image for) 1/2 In Dr Impact Socket, 6 Pt, Deep, 3/4 In
1/2 In Dr Impact Socket, 6 Pt, Deep, 3/4 In
Sunex Tools 224D
Your Price: $11.01
(image for) 3/8" Deep Impact Socket 19mm
3/8" Deep Impact Socket 19mm
Grey Pneumatic 1019MD
Your Price: $6.80
List Price: $8.55
20% off
(image for) 11mm (7/16 In) 4 - Flute Finger Replacement
11mm (7/16 In) 4 - Flute Finger Replacement
Walton Tools 12434
Your Price: $2.67
(image for) 3/8" Deep Impact Socket 18mm
3/8" Deep Impact Socket 18mm
Grey Pneumatic 1018MD
Your Price: $6.72
List Price: $8.46
21% off
(image for) 1/2 In Dr Impact Socket, 6 Pt, Deep, 17mm
1/2 In Dr Impact Socket, 6 Pt, Deep, 17mm
Sunex Tools 217MD
Your Price: $11.01
(image for) 1/4 Inch Drive Hex Bit Socket Organizer w/ Magnetic Base 3
1/4 Inch Drive Hex Bit Socket Organizer w/ Magnetic Base 3
Mechanics Time Saver 588
Your Price: $14.06
(image for) Mechanical Fuel Cap Tester System
Mechanical Fuel Cap Tester System
Motorad / Stant 12300
Your Price: $499.00
(image for) WIRE LOOM ROUTING CLIP 1/2 I.D. 11/16 O.D.
WIRE LOOM ROUTING CLIP 1/2 I.D. 11/16 O.D.
AUVECO - Auto Vehicle Parts LLC 19851
Your Price: $15.64
List Price: $19.74
21% off
(image for) 3/8" SAE Deep Impact Socket 15/16"
3/8" SAE Deep Impact Socket 15/16"
Grey Pneumatic 1030D
Your Price: $10.29
List Price: $12.94
20% off
(image for) Adjustable Wrench - 4 In
Adjustable Wrench - 4 In
K Tool International KTI48004
Your Price: $10.99

Similar Products

(image for) 13 Pc 3/8" Drive Deep Length Metric Set
13 Pc 3/8" Drive Deep Length Metric Set
Grey Pneumatic 1213MD
Your Price: $50.51
List Price: $73.38
31% off
(image for) 26 Pc 3/4" Drive Deep Metric 12 Pt Impact Socket Set
26 Pc 3/4" Drive Deep Metric 12 Pt Impact Socket Set
Grey Pneumatic 8126MD
Your Price: $889.25
List Price: $1291.98
31% off
(image for) 23mm 1/2" Drive 6 Pt Deep Impact Socket
23mm 1/2" Drive 6 Pt Deep Impact Socket
Grey Pneumatic 2023MD
Your Price: $12.80
List Price: $16.11
21% off
(image for) 1" Drive 38mm Deep Impact Socket
1" Drive 38mm Deep Impact Socket
Grey Pneumatic 4038MD
Your Price: $53.69
List Price: $54.11
1% off
(image for) 1" Drive x 22mm Deep
1" Drive x 22mm Deep
Grey Pneumatic 4022MD
Your Price: $38.11
List Price: $47.95
21% off
(image for) 3/4" Drive x 38mm Deep Impact Socket
3/4" Drive x 38mm Deep Impact Socket
Grey Pneumatic 3038MD
Your Price: $30.39
List Price: $38.25
21% off
(image for) 35mm Deep Length 3/4" Drive Metric Impact Socket
35mm Deep Length 3/4" Drive Metric Impact Socket
Grey Pneumatic 3035MD
Your Price: $29.10
List Price: $36.62
21% off
(image for) 3/8" Deep Impact Socket 18mm
3/8" Deep Impact Socket 18mm
Grey Pneumatic 1018MD
Your Price: $6.72
List Price: $8.46
21% off
(image for) 3/8" 12 Pt Deep Impact Socket 18mm
3/8" 12 Pt Deep Impact Socket 18mm
Grey Pneumatic 1118MD
Your Price: $6.72
List Price: $8.46
21% off
(image for) 3/8" 12 Pt Deep Impact Socket 21mm
3/8" 12 Pt Deep Impact Socket 21mm
Grey Pneumatic 1121MD
Your Price: $7.93
List Price: $9.98
21% off
(image for) 3/8" Drive x 14mm Deep Impact Socket
3/8" Drive x 14mm Deep Impact Socket
Grey Pneumatic 1014MD
Your Price: $5.05
List Price: $6.35
20% off
(image for) 3/8" Drive x 22mm Standard Impact Socket
3/8" Drive x 22mm Standard Impact Socket
Grey Pneumatic 1022M
Your Price: $5.15
List Price: $6.48
21% off