Flat Finishing Box

12" Drywall Flat Box

  • SKU: 4-766 | UPC: 8.16E+11
SKU:
4-766
UPC:
8.16E+11

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Now: $323.99
MSRP: $359.99
Was: $359.99
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Questions? Prefer to order directly over the phone? Call: 800.227.7713

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  • CONSISTENT COVERAGE | Expertly dispense an even, consistent layer of drywall joint compound to taped flat and butt joints on walls and ceilings.
  • ADJUSTABLE | A flexible brass blade allows you to provide the proper compound application and crown - whether you're applying the first fill coat or the final finish coat. Butt and flat joint edges are also feathered to perfection.
  • EASY OPERATION | 10 pressure settings so you can dial in the perfect result. A deeper set pressure lid allows for easier push operation than other flat boxes on the market.
  • EASY CLEANING | The lid has a fixed hinge for smoother operation and it opens extra wide for fast, easy cleaning.
  • DESIGNED TO PERFORM | A deeper back spine makes hand operation easier, faster and more accurate. Hard coat anodized aluminum housing for durability. Fits all major brand drywall flat box handles.

Models Available

Variations Available

Frequently Bought Together

Please choose options for all selected products

SET CONTENTS

Below are the items included in this tool set:

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For more details or to purchase by telephone, call us at 800.227.7713

Overview

A flat box is used in conjunction with a flat box handle to efficiently apply a crowned, feathered coat of joint compound over taped flat seams on walls and ceilings.

LEVEL5 flat boxes feature a premium-grade aluminum housing that has been anodized for extreme durability and easy cleaning. They are fitted with a flexible brass blade holder and a stainless steel blade, as well as stainless steel skids and shoes. A crown adjustment dial provides six settings (including “wide open”), so the ideal amount of compound can be dispensed on the wall to ensure consistent, professional results.

LEVEL5 flat boxes have a premium composite pressure plate seal and beveled edges on the box housing ensure easy open and close. The pressure plate itself also opens extra wide for easy cleaning.

LEVEL5 flat boxes are outfitted with non-marring wheels with durable bearings for ultra-smooth operation.

MEGA CAPACITY FLAT BOXES

The MEGA capacity flat boxes can hold approximately 30% more compound than standard capacity flat boxes, enabling few trips back and forth to the pump. The trade off is that MEGA capacity fla boxes are bulkier and heavier when full due to their increased height. Ultimately, the choice between the two styles is a matter of personal preference.

level5 flat box finishing a corner
level5 flat box being filled

2ND GENERATION ENHANCEMENTS

  • Both the standard and MEGA capacity flat boxes feature higher compound capacities than previous generation.
  • All structural components are higher-gauge, aircraft-grade aluminum for durability, even under heavy commercial use.
  • New precision-machined billet aluminum body and side plates with bevelled edges.
  • Side plates are now black hard-coat anodized, significantly reducing the friction against the sweep gasket and lowering required push force.
  • New proprietary urethane sweep gasket provides less resistance, smoother operation and a better seal.
  • New hinged pressure plate provides a consistent push radius at all compound capacity levels.
  • Hinge opens wide for easy cleaning.
  • New high-durometer urethane rubber tires for more longevity.

TIPS & TRICKS

  • Consistency of Compound - There are no strict guidelines for the consistency of the compound when using flat boxes, as it is a matter of personal preference. It is crucial to ensure that the compound is thick enough to avoid dripping down the walls or overflowing from the dispensing slot, but thin enough to be applied without excessive force. Some finishers prefer to use different consistencies depending on the surface they are working on (walls or ceilings).
  • Filling the Flat Box - The ideal way to fill the flat box is through the dispensing slot with a compound pump (#4-771) and a filler valve equipped with a flat box filler nozzle (both are included with the pump). It is also possible to manually fill the box by opening the hinged pressure plate.
  • Flat Box Handles - Flat box handles have a pinch break feature which enables you to lock the box at a specific angle and maintain it flat against the wall. To activate this mechanism, squeeze the trigger located at the end of the handle. PRO TIP: to prevent injury, keep light pressure on the pinch brake trigger when the flat box is not in use to avoid swinging and accidental contact with your knuckles or fingers.
  • First Coat - The first coat should be a "fill" coat, using the lowest crown setting of your choice (out of the 6 crown options). The purpose of this coat is to completely cover the tape and conceal the tape bevels. If you come across any air pockets or other imperfections, simply apply one or more passes over the seam until you are satisfied with the result.
  • Second Coat - After the first coat has dried, a second, thin layer can be applied using a slightly wider flat box to fill any imperfections and feather out the compound to hide the seam.
  • Final Result - When performed correctly, only two coats should be necessary, with minimal sanding required afterwards to achieve a professional finish.

USAGE VIDEOS

PRODUCT INFO

Warranty

7-Year Warranty

100% Satisfaction Guaranteed

LEVEL5 makes workhorse drywall finishing tools that set the standard for quality & reliability.

We back all of our tools with the strongest warranties in the industry and work hard to provide our family of finishers with the best customer service possible.

Do you have questions about your LEVEL5 Tool(s)? Call our toll-free support line at 866.562.4229 (local: 913.631.0804) or send us an email at support@level5tools.com. Our support team is available Monday through Friday, 7:30am to 4pm Central Time.

Manufacturer's  Warranty

For its full line of automatic drywall finishing tools and accessories, LEVEL5 Tools, LLC. ("LEVEL5") offers a full seven (7) year warranty to the original owner that these products will be free from defects in material and function. This warranty is valid only in the USA, Canada, Australia, the United Kingdom and Europe. A one (1) year warranty applies in all other countries/markets.

Terms & Conditions

  • The Warranty applies to the original owner and is not transferable.
  • The Warranty is limited to repair or replacement of the product, and does not cover direct, indirect, consequential, incidental or any other type of damage resulting from its use.
  • The Warranty does not cover normal wear, misuse, negligence, fire, theft, loss or intentional damage.
  • All shipments to the LEVEL5 facility must be freight paid. LEVEL5 reserves the right to determine whether to repair or replace any product covered under the Warranty. Discontinued products may be replaced with newer models when necessary.
Parts & Components

Parts and Components

Standard Flat Boxes 2G

Compatible with SKU(s): 4-764, 4-765, 4-766, 4-770

Download schematic PDF Download schematic PDF
SCHEMATIC #
#
PART #
DESCRIPTION
PRICE
1
7012
#6-32 x 1/4 Fillister Head
$1.00
Adding to cart… The item has been added
2
7015
#6-32 Thin Pattern Locknut
$1.00
Adding to cart… The item has been added
3
7063
Bearing Nyliner
$1.50
Adding to cart… The item has been added
4
7119
Nyliner Bearing-Straight
$2.75
Adding to cart… The item has been added
5
7177
#10 Brass Washer
$1.00
Adding to cart… The item has been added
6
7178
#14 Brass Washer
$1.00
Adding to cart… The item has been added
7
7207
7inin Flat Box Blade
$3.25
Adding to cart… The item has been added
8
7208
7inin Blade Holder Assembly
$120.00
Adding to cart… The item has been added
9
7212
Skid Cover Rt Side, Universal
$2.00
Adding to cart… The item has been added
10
7213
Brass Pins
$8.00
Adding to cart… The item has been added
11
7216
Crown Spring
$6.00
Adding to cart… The item has been added
12
7217
#4-40 x 1/4 Fillister Head Screw
$1.00
Adding to cart… The item has been added
13
7223
Dial Adjustment Nut
$4.00
Adding to cart… The item has been added
14
7224
Repair Clip
$1.00
Adding to cart… The item has been added
15
7226
7inin Bottom Plate
$65.00
Adding to cart… The item has been added
16
7227
10inin Bottom Plate
$75.00
Adding to cart… The item has been added
17
7228
12inin Bottom Plate
$85.00
Adding to cart… The item has been added
18
7229
14inin Bottom Plate
$95.00
Adding to cart… The item has been added
19
7239
Skid Cover Left Side Universal
$2.00
Adding to cart… The item has been added
20
7241
7inin Front Plate
$65.00
Adding to cart… The item has been added
21
7242
10inin Front Plate
$75.00
Adding to cart… The item has been added
22
7243
12inin Front Plate
$85.00
Adding to cart… The item has been added
23
7244
14inin Front Plate
$95.00
Adding to cart… The item has been added
24
7251
Dial Assembly
$20.00
Adding to cart… The item has been added
25
7254
10inin Flat Box Blade
$5.25
Adding to cart… The item has been added
26
7255
Std Left Side Plate
$65.00
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27
7256
Stnd Right Side Plate
$65.00
Adding to cart… The item has been added
28
7267
10inin Blade Holder Assembly
$140.00
Adding to cart… The item has been added
29
7270
12inin Flat Box Blade
$6.25
Adding to cart… The item has been added
30
7273
14inin Flat Box Blade
$7.25
Adding to cart… The item has been added
31
7274
14inin Blade Holder Assembly
$180.00
Adding to cart… The item has been added
32
7275
12/14inin Crown Spring
$10.00
Adding to cart… The item has been added
33
7278
14inin Axle
$45.00
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34
7280
10inin Flat Box Axle
$35.00
Adding to cart… The item has been added
35
7281
7inin Flat Box Axle
$30.00
Adding to cart… The item has been added
36
7282
12inin Flat Box Axle
$40.00
Adding to cart… The item has been added
37
7284
12inin Blade Holder Assembly
$160.00
Adding to cart… The item has been added
38
7349
Hinged Flat Box Screw
$1.00
Adding to cart… The item has been added
39
7380
7inin Rubber Hinge Pin Shim
$5.00
Adding to cart… The item has been added
40
7381
10inin Rubber Hinge Pin Shim
$5.50
Adding to cart… The item has been added
41
7382
12inininin Rubber Hing Pin Shim
$6.00
Adding to cart… The item has been added
42
7383
14inin Rubber Hinge Pin Sham
$6.50
Adding to cart… The item has been added
43
7388
Pivot for Box Plate Hinge
$8.00
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44
7390
7inin Hinged Flat Box Gasket
$25.00
Adding to cart… The item has been added
45
7391
10inin Hinged Flat Box Gasket
$30.00
Adding to cart… The item has been added
46
7392
12inin Hinged Flat Box Gasket
$35.00
Adding to cart… The item has been added
47
7393
14inin Hinged Flat Box Gasket
$40.00
Adding to cart… The item has been added
48
7394
7inin Hinged Pressure Plate
$75.00
Adding to cart… The item has been added
49
7395
10inin HInged Pressure Plate
$80.00
Adding to cart… The item has been added
50
7396
12inin Hinged Pressure Plate
$85.00
Adding to cart… The item has been added
51
7397
14inin Hinged Pressure Plate
$90.00
Adding to cart… The item has been added
52
7552
14inin Blade Holder Bracket
$5.50
Adding to cart… The item has been added
53
7792
Latch
$4.75
Adding to cart… The item has been added
54
7793
Shoulder Screw
$5.00
Adding to cart… The item has been added
55
7798
Spring Washer
$1.00
Adding to cart… The item has been added
56
8232
T-Nut
$5.00
Adding to cart… The item has been added
57
8273
Pressure Plate Ext. Spring
$6.00
Adding to cart… The item has been added
58
8291
8-32 X 3/8, BHC Screw
$1.00
Adding to cart… The item has been added
59
8301
#10-32 Hex Head Shoulder Screw
$4.00
Adding to cart… The item has been added
60
8302
#10-32 Lock Nut
$1.00
Adding to cart… The item has been added
61
8303
#10-32 X 1inin SHC Screw
$1.00
Adding to cart… The item has been added
62
8305
Spring Anchor
$4.00
Adding to cart… The item has been added
63
8306
Pressure Plate Nut
$3.00
Adding to cart… The item has been added
64
9211
12inin Blade Holder Bracket
$5.00
Adding to cart… The item has been added
65
9219
Flat box Screw (#4)
$1.00
Adding to cart… The item has been added
66
9237
FB Bolt (holds axle on)
$5.00
Adding to cart… The item has been added
67
9268
10inin Blade Holder Bracket
$4.50
Adding to cart… The item has been added
68
9273
Lightweight Pressure Plate Spring
$5.00
Adding to cart… The item has been added
69
9285
7inin Blade Holder Bracket
$4.00
Adding to cart… The item has been added
70
9613
FB Washer
$1.00
Adding to cart… The item has been added
71
9685
FB Box Tire
$1.50
Adding to cart… The item has been added
72
9719
FB Box Wheel, Black
$6.00
Adding to cart… The item has been added
73
9916
AT Wing Nut
$1.00
Adding to cart… The item has been added

12in Flat Box

Compatible with SKU(s): 4-766

Download schematic PDF Download schematic PDF
SCHEMATIC #
#
PART #
DESCRIPTION
PRICE
1
7012
#6-32 x 1/4 Fillister Head
$1.00
Adding to cart… The item has been added
2
7015
#6-32 Thin Pattern Locknut
$1.00
Adding to cart… The item has been added
3
7063
Bearing Nyliner
$1.50
Adding to cart… The item has been added
4
7119
Nyliner Bearing-Straight
$2.75
Adding to cart… The item has been added
5
7177
#10 Brass Washer
$1.00
Adding to cart… The item has been added
6
7178
#14 Brass Washer
$1.00
Adding to cart… The item has been added
7
7212
Skid Cover Rt Side, Universal
$2.00
Adding to cart… The item has been added
8
7213
Brass Pins
$8.00
Adding to cart… The item has been added
9
7217
#4-40 x 1/4 Fillister Head Screw
$1.00
Adding to cart… The item has been added
10
7223
Dial Adjustment Nut
$4.00
Adding to cart… The item has been added
11
7224
Repair Clip
$1.00
Adding to cart… The item has been added
12
7239
Skid Cover Left Side Universal
$2.00
Adding to cart… The item has been added
13
7251
Dial Assembly
$20.00
Adding to cart… The item has been added
14
7270
12inin Flat Box Blade
$6.25
Adding to cart… The item has been added
15
7275
12/14inin Crown Spring
$10.00
Adding to cart… The item has been added
16
7284
12inin Blade Holder Assembly
$160.00
Adding to cart… The item has been added
17
7792
Latch
$4.75
Adding to cart… The item has been added
18
7793
Shoulder Screw
$5.00
Adding to cart… The item has been added
19
7798
Spring Washer
$1.00
Adding to cart… The item has been added
20
8232
T-Nut
$5.00
Adding to cart… The item has been added
21
8272
Flat Box Seal, 12inin
$40.00
Adding to cart… The item has been added
22
8291
8-32 X 3/8, BHC Screw
$1.00
Adding to cart… The item has been added
23
8301
#10-32 Hex Head Shoulder Screw
$4.00
Adding to cart… The item has been added
24
8302
#10-32 Lock Nut
$1.00
Adding to cart… The item has been added
25
8303
#10-32 X 1inin SHC Screw
$1.00
Adding to cart… The item has been added
26
8305
Spring Anchor
$4.00
Adding to cart… The item has been added
27
8306
Pressure Plate Nut
$3.00
Adding to cart… The item has been added
28
9219
Flat box Screw (#4)
$1.00
Adding to cart… The item has been added
29
9237
FB Bolt (holds axle on)
$5.00
Adding to cart… The item has been added
30
9240
FB Pressure Spring Holder
$2.00
Adding to cart… The item has been added
31
9245
FB Screw
$1.00
Adding to cart… The item has been added
32
9257
12inin Bottom Plate
$65.00
Adding to cart… The item has been added
33
9269
12inin Pressure Plate
$70.00
Adding to cart… The item has been added
34
9273
Lightweight Pressure Plate Spring
$5.00
Adding to cart… The item has been added
35
9274
FB 12inin Mental Hinge
$10.00
Adding to cart… The item has been added
36
9282
12 Axle
$45.00
Adding to cart… The item has been added
37
9550
Left Side Plate
$50.00
Adding to cart… The item has been added
38
9551
Right Side Plate
$46.00
Adding to cart… The item has been added
39
9556
12inin Front Plate
$49.00
Adding to cart… The item has been added
40
9613
FB Washer
$1.00
Adding to cart… The item has been added
41
9701
FB Screw (Side Plate
$1.00
Adding to cart… The item has been added
42
9719
FB Box Wheel, Black
$6.00
Adding to cart… The item has been added
43
9799
FB Screw
$1.00
Adding to cart… The item has been added
44
9916
AT Wing Nut
$1.00
Adding to cart… The item has been added
On Sale
Flat Box Filler Valve

Filler Valve

Flat Box Filler Valve

SKU#: 4-715

Now: $58.49
MSRP: $64.99
Was: $64.99

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On Sale
3" LEVEL5 drywall corner finisher

Corner Finisher

3" Drywall Corner Finisher

SKU#: 4-733

Now: $346.49
MSRP: $384.99
Was: $384.99

Includes FREE 3-5 Day Shipping*

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On Sale
Level5 compound pump

Joint Compound Pump

Drywall Compound Pump

SKU#: 4-771

Now: $299.99
MSRP: $399.99
Was: $399.99

Includes FREE 3-5 Day Shipping*

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On Sale
7" Drywall Corner Applicator Box

Corner Applicator

7" Drywall Corner Applicator Box

SKU#: 4-701

Now: $251.99
MSRP: $279.99
Was: $279.99

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On Sale
3" Drywall Nail Spotter [2nd Gen]

Nail Spotter

3" Drywall Nail Spotter [2nd Gen]

SKU#: 4-755

Now: $251.99
MSRP: $279.99
Was: $279.99

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On Sale
Medium, 30" - 42" Flat Box Extension Handle

Flat Box Handle

30-42" Extendable Flat Box Handle

SKU#: 4-781

Now: $242.99
MSRP: $269.99
Was: $269.99

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Reviews

(1 review)
  • Box

    S. Smeltzer, June 29, 2019

    5

    Fast shipping good quality product