Rockler Clamp-It Adjustable Assembly Square

Item #
78646

Adjustable from 45° to 315°, this versatile square helps you clamp angled pieces together for fastening—updated with features that make it even easier to hold and secure!

More details
$19.99 Each
Buy 4 or More and Pay $17.99 Each (Save 10%)
Buy 8 or More and Pay $16.99 Each (Save 15%)
Discount automatically applies in cart.
How do you want your item?
Or Buy These Together
Please select at least one addon to add it to the cart.
Total Price Taxes estimated at checkout
$109.96

Not every joint comes together at 90°, and there are few things more difficult than holding pieces of a project at odd angles while trying to assemble with nails or screws. That is, unless you use a Clamp-It Adjustable Assembly Square! It rotates from 45º to 315° in 5° increments and locks in place at the angles you need most, including 45° and 60°. Of course, you can use it at the 90° setting as well for the bulk of your work.

We've added four docking slots and a pair of positioning clips to make its installation easier on complex assemblies or when you're working alone. The gray clips engage in the docking slots so you can hang the square from the edges of either 1/2'' or 3/4'' material. These docking slots also fit the heads of our dedicated Clamp-it Trigger Clamps and Power Jaw Clamps (#75311 and #63965, both sold separately). That way, the assembly square can also hold a pair of clamps at the ready, so those tricky angle joints are easy to cinch tight with one hand.

Rockler Clamp-It Adjustable Assembly Square Details:

  • Makes it easy to clamp the angled joints of cabinet parts, stair railings, deck components and other frames together
  • Rotates from 45º to 315° in 5° increments and locks in place at the angles you need most
  • Replaces custom clamping jigs and acts as a third hand
  • Locks at 90°, 45°, 60° and multiples of 45° and 60°
  • Great for clamping and fastening projects with odd angles or 4-, 6-, 8- and 12-sided frames
  • Angle adjustment knob engages poker-chip style teeth, to lock solidly at angle settings
  • Handy tick marks around knob provide quick reference for setting standard angles
  • Adjustment knob sits below surrounding surfaces of square so it can be used on either face
  • Docking slots engage the heads of our dedicated Clamp-it Trigger Clamps and Power Jaw Clamps (#75311 and #63965, both sold separately) and hold them in place on the assembly square for quick and easy tightening
  • Gray positioning clips snap into docking slots for attaching assembly square to the edges of 1/2'' and 3/4'' thick material
  • Same 8'' x 8'' outer dimensions, 1-1/2'' height and 2''-wide arms as our classic black Clamp-It Adjustable Assembly Square
  • Positioning clips can be mounted to the underside of square for hanging band clamp straps
  • Docking holes allow a series of squares to be linked with lengths of 5/16''-18 threaded rods and nuts (not included) for positioning and securing along tall assemblies
  • Docking holes also fit round bars of our Universal Fence Clamps and Quick-Release Multi Clamps (#75668 and #68612, both sold separately), as well as T-bolts
  • Positioning clips can be mounted to the underside of square for hanging band clamp straps
  • Notches and predrilled holes for #8 screws let you mount assembly square standing up—great for building jigs and other assembly fixtures
  • Positioning clips lock assembly squares together conveniently for storage
  • Manufactured from glass-reinforced ABS to ensure strength and accuracy

(1) Rockler Clamp-It Adjustable Assembly Square
(2) Positioning clips

More Information
Brand Rockler
Weight 0.95
Tech Spec
  • Brand: Rockler
  • Clamp Material: Glass-reinforced ABS plastic, steel insert
  • Overall Dimensions: 8''W x 8''L x 1-1/2''H
  • Arm Width: 2''
  • Style: Adjustable angle
Unit of Measure Each

Prop 65 WarningWARNING:
This product can expose you to chemicals including styrene, which is known to the State of California to cause cancer, and butadiene, which is known to the State of California to cause birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov/wood