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Ships within 48 hours · Estimated delivery Sep 10 - Sep 15
For Your Every Summer RSVP, with Code: SUMMER15
Description
CMT 317.320.12 Hinge Boring Bit 32 x 57.5mm LHThe CMT 317. 320 is a (Hinge Boring Bit (57. 5mm)). Hinge boring bit for drilling flat bottom hinge cup holes in cabinet doors and face frames. The flat bottom geometry is required for European style concealed hinges. Rotation: Left hand (LH). SPECIFICATIONS Diameter (D) 32mm Total Length (L) 57. 7mm Shank (S) 10x26mm Tooth Geometry Negatively ground spurs Spurs 2 Number of Teeth 2 Product Type Hinge Boring Bit Series Hinge Boring Bit (57. 5mm)

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4.3 ★★★★★
Based on 2202 reviews
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Product Reviews
★★★★★ 2
Good finish, poor hardware.
Set screws are poor quality and are sometimes powdercoated on the exposed threads. Leads to striped hex sockets and inability to tighten properly.
Durable finish as evidenced by no visible damage after throwing parts across the shop in frustration.
Ended up running self tapping screws thru parts to complete assembly.
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Reviewed in the United States on February 26, 2024
★★★★★ 1
Kinda flimsy…
Thought the assembly was metal, it’s some kind of PVC.
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Reviewed in the United States on September 22, 2025
★★★★★ 5
Stable and easy to assemble
I used these to support a heavy piece of countertop would to create a side table. Looks great and holds steady.
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Reviewed in the United States on February 15, 2023
★★★★★ 5
Great
All pieces cut to perfection, went together perfectly
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Reviewed in the United States on October 22, 2023
★★★★★ 1
Some of the components are plastic
This is not a heavy duty application what so ever . One of the flanges broke . We do not recommend this product
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Reviewed in the United States on July 5, 2024




