null
Proudly Canadian Owned & Operated
Flat Rate Shipping
  • Wish Lists
  • Compare
  • Check out
  • USD
    • Canadian Dollars
    • US Dollar
    • Mexican Peso
    • Euro
    • British Pound
    • Australian Dollar
Vertical Categories
Ontario Glazing Supplies
  • Hello, sign in Your account
    • Sign in
    • Register
  • My Cart

    0 items $0.00
All Categories
loading
  • Find A Contractor
  • Contact Us
  • Blog
  • Colour Charts
    • Acme
    • Bohle
    • Roto
    • Titan Hardware
    • Truth Hardware
  • Terms & Conditions
  • Sign in
  • Register
  • Select Currency:
  • Canadian Dollars
  • US Dollar
  • Mexican Peso
  • Euro
  • British Pound
  • Australian Dollar
  • Home
  • Find A Contractor
  • Contact Us
  • Blog
  • Colour Charts
    • Acme
    • Bohle
    • Roto
    • Titan Hardware
    • Truth Hardware
  • Terms & Conditions
  1. Home
  2. Glazing Tools
  3. Hand Tools
  4. L Square With Angle Brace
All Categories
  • Door Hardware
    • Commercial
      • Door Closers
      • Handles
      • Locks
      • Patch Fittings
      • Pivots
      • Rollers and Wheels
    • Closet
    • Patio
      • Handles
      • Kick-Locks
      • Mortise Locks
      • Single Rollers
      • Tandem Rollers
    • Shower
      • Collections / Suites
      • Hinges
      • Handles
      • Clamps
  • Railing Hardware
    • Vetromount
    • Wet Glazed
    • Posts
    • Standoffs
    • Spigots
    • Handrails
    • Cap Rails
  • Glass Cutting & Breaking
    • Glass Cutting
      • Auto Cutting
      • Hand Cutting
    • Glass Drilling
      • Replacement Parts
    • Pliers And Breakers
  • Glazing Supplies
    • Tapes, Sealants, and Adhesives
    • Protective Pads
    • Shims and Setting Blocks
    • Cleaners and Lubricants
  • Glazing Tools
    • Glass Measuring & Electronic Gauges
    • Hand Tools
  • Glass Safety
  • UV Glass Bonding
  • Mirrors, Channels, Trims & Components
    • Mirrors
    • Channels & Trims
    • Switch Plates
      • Acrylic
      • Glass
  • Screen Supplies & Components
  • Shop Tools
    • Clamps & Markers
    • Countersinks, Drill Bits & Driver Bits
    • Fasteners
    • Glass & Material Transporting
    • Sanding & Polishing
      • Replacement Parts
  • Vacuum Lifting & Handling
    • Hand-Held Suction Cups
      • Replacement Parts
    • Vacuum Lifters
      • Ladder Lifter Series
      • MR4 Lifter Series
      • MRTALP Lifter Series
      • MTCL Lifter Series
      • P1 Lifter Series
      • MRT4 Lifter Series
      • MRTA Lifter Series
      • MRTALPCH Series
      • Accessories
      • Replacement Parts
      • Liftmaster B1 Series
  • Window Hardware
    • Casement
      • Hinges
      • Operators
      • Locks
    • Awning
      • Hinges
      • Locks
      • Operators
      • Teleflex
    • Hung
      • Locks
      • Window Balances
    • Push Bars & Accessories
    • Pin Balance
    • Tilt & Turn
    • Vent Window Handle Locks
    • Accessories
      • Brackets
      • Covers
      • Gaskets
      • Handles
      • Limit Devices
      • Miscellaneous
      • Tie Bar Guides
      • Tracks
  • Weatherstripping, Spline & Gaskets

Best Sellers

Sash Wheel #5605 (Large Wheel) - OGS Part # SP-5605, Image 1

Sash Wheel #5605 (Large Wheel)

Titan Hardware

MSRP:
Was:
Now: $0.79
Truth Tango Cover & Handle For Encore Operators, Left Hand, White - OGS Part # CH-67481LW, Image 1

Truth Tango Cover & Handle For Encore Operators

AmesburyTruth

MSRP:
Was:
Now: $10.72
Truth, Operator Handle, White

Truth (10579) Window Operator Handle

AmesburyTruth

MSRP:
Was:
Now: $5.00 - $26.45
Multi-Point Locking Tie Bar Guide D2

Multi-Point Locking Tie Bar Guide D2

Titan Hardware

MSRP:
Was:
Now: $1.43
Klingspor Sanding Belts

Sanding Belts

Klingspor

MSRP:
Was:
Now: $1.37 - $15.73
Truth Hardware EntryGard Operator Cover, White, AmesburyTruth 10341-32, OGS Part # CH-6750W, Image 1

Truth EntryGard Operator Cover

AmesburyTruth

MSRP:
Was:
Now: $3.57

Let us help you

Reputable Service

Are you having trouble finding quality contractors to complete your project? We've solved that problem for you.

Click Me
Sidebar
Bohle L Square BO-031.1
  • Bohle L Square BO-031.1
  • Bohle L Square BO-031.1
  • Bohle L Square BO-033.1
  • Bohle L Square BO-033.1
  • Bohle L Square BO-035.1
  • Bohle L Square BO-035.1

L Square With Angle Brace

MSRP:
Was:
Now: $85.78
(You save )
Brand
Bohle
SKU:
ST-1501
UPC:
Availability:
Usually ships within 24 hours.

Buy Now Ask a question

Adding to cart… The item has been added

Add to Wish List
  • Create New Wish List
  • Facebook
  • Email
  • Print
  • Twitter
  • Pinterest
Bohle L Square BO-031.1

L Square With Angle Brace

SKU: ST-1501

  • Description
  • Reviews & Questions

Bohle Professional Glass-Cutting Aid  |  BO031.1, BO033.1 & BO035.1  |  OGS SKU ST-1501

Precision L-Square with Integrated Angle Brace

The Bohle L-Square with Brace is a professional cutting guide designed to establish a consistent right-angle reference from a straight glass edge. Manufactured from a single piece of rigid hard-paper laminate, the square incorporates a diagonal brace for added dimensional stability during marking and scoring. Ontario Glazing Supplies offers the three most practical shop sizes: nominal 24", 41" and 59" cutting lengths.

Available Sizes

24", 41" & 59"

Construction

One-Piece Laminate

Reinforcement

Integrated Brace

Manufactured In

Germany

The selected inch size is the nominal cutting length. Bohle publishes the exact dimensions in metric units; see the size chart below.

Designed for Accurate, Repeatable Square Cuts

The short head of the L-square registers against a straight glass edge while the long leg provides a guide for marking or scoring perpendicular to that edge. Bohle recommends the braced design where particularly precise cuts are required.

  • Integrated diagonal brace: Improves rigidity and helps the square resist twisting while it is positioned on the cutting table.
  • One-piece construction: The body and brace are produced from one piece of high-quality material, avoiding a separate adjustable joint between the legs.
  • High-precision production: Manufactured using CNC equipment for low tolerances and careful edge processing.
  • Professional dimensional accuracy: Bohle states that its L-squares fall below the angular tolerances required by DIN ISO 2768, tolerance class "fine".
  • Purpose-built cutting aid: Ideally suited to use with a Silberschnitt® glass cutter and appropriate glass cutting fluid.

Rigid, Stable and Torsion-Resistant

Bohle specifies the material as hard paper, a rigid non-metallic laminate commonly described in the North American glazing trade as phenolic material. The black body is designed to provide long service life without the weight of a comparable solid-metal shop square.

The integrated brace supports the relationship between the head and the cutting edge, helping the tool remain stable when setting up perpendicular scores on flat glass.

Important: This Square Is Not Graduated

Bohle identifies this model as a cutting aid and does not provide a printed measuring scale. Measure and mark the required glass dimension separately, then position the L-square as the perpendicular cutting guide.

The 24", 41" and 59" option names refer to nominal cutting capacity—not the tool's complete outside dimensions.

Available Sizes & Bohle Specifications

OGS Size Bohle No. Cutting Length Head Length Overall L × W Weight
24" BO031.1 60 cm
Approx. 23-5/8"
30 cm
Approx. 11-13/16"
665 × 315 mm
Approx. 26.2" × 12.4"
534 g
Approx. 1.18 lb
41" BO033.1 105 cm
Approx. 41-5/16"
40 cm
Approx. 15-3/4"
1,120 × 414 mm
Approx. 44.1" × 16.3"
878 g
Approx. 1.94 lb
59" BO035.1 150 cm
Approx. 59-1/16"
45 cm
Approx. 17-11/16"
1,570 × 465 mm
Approx. 61.8" × 18.3"
1.30 kg
Approx. 2.87 lb

General Technical Details

Manufacturer / Product Bohle L-Square with Brace
OGS SKU ST-1501
Material / Colour Rigid hard-paper laminate / Black
Design One-piece body with integrated diagonal brace
Measuring Task Glass-cutting aid
Graduated Scale No
Angular Tolerance Reference Below the requirements of DIN ISO 2768, tolerance class "fine," according to Bohle
Country of Manufacture Germany
Package Contents 1 L-square in the selected size

Recommended Method of Use

  1. Prepare the work area: Support the glass fully on a clean cutting table and remove chips, grit or debris that could affect the square or scratch the glass.
  2. Measure and mark: Establish the required cut location with a separate measuring tool, since the L-square is not graduated.
  3. Register the square: Place the head firmly against a clean, straight glass edge and align the long guide edge with the cut mark.
  4. Score the glass: Hold the square securely and make one continuous score with a suitable glass cutter and the appropriate cutting fluid.
  5. Remove and store: Lift the square away before running or breaking the score, then clean and store the tool as recommended below.

Care, Storage & Use Guidance

Bohle advises that L-squares are sensitive to excessive moisture, including sustained humidity, as well as heat and improper storage. After use, hang the square securely on a wall in a clean, dry location so the body is supported without being bent or placed under load.

Inspect the guide edges and squareness before precision work. Do not use a damaged, distorted or heavily worn square. Follow appropriate glass-cutting procedures and wear suitable eye, hand and foot protection for the work being performed.

Complete the cutting setup: Pair the L-square with a suitable hand glass cutter and Bohle glass cutting oil for the glass type, thickness and cutting method.

!
Contact us :
(905) 652 - 2772
Addresses : Ontario Glazing Supplies Ltd.
300 Trowers Road, Unit 7
Woodbridge, ON, Canada
L4L 5Z9
Email: info@ogscanada.ca

Information

  • Find A Contractor
  • Contact Us
  • Blog
  • Colour Charts
  • Terms & Conditions
  • Sitemap

Legal

  • Terms & Conditions
  • Privacy Policy
  • Return Policy

Brands

  • AmesburyTruth
  • Wood's Powr-Grip
  • Bohle
  • Titan Hardware
  • Makita
  • View All

All Categories

  • Door Hardware
  • Railing Hardware
  • Glass Cutting & Breaking
  • Glazing Supplies
  • Glazing Tools
  • View All

Sign Up For Newsletter

Subscribe and get exlusive offers & information sent directly to you.

© 2026 Ontario Glazing Supplies
Close ×

Sign in

Create Account Forgot your password?