Quantity:
Split collars have several advantages over the standard grub screw type.
They lock on solidly, they don't tilt, and there is no grub screw damage to the bit web. Most important is the solid lock. If you have ever had depth collars creep or slip on you, you know how much damage can result. Good collars at a good price.
The set of seven Imperial drill sizes includes 1/8", 3/16", 1/4", 5/16", 3/8", 7/16" and 1/2". Hex key included.
A metric set is also available.
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Variations:
Imperial Split Depth Collars for Drills
Split collars have several advantages over the standard grub screw type.
They lock on solidly, they don't tilt, and there is no grub screw damage to the bit web. Most important is the solid lock. If you have ever had depth collars creep or slip on you, you know how much damage can result. Good collars at a good price.
The set of seven Imperial drill sizes includes 1/8", 3/16", 1/4", 5/16", 3/8", 7/16" and 1/2". Hex key included.
A metric set is also available.
