Centre Bit: Difference between revisions
From DT Online
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=====Description===== | |||
[https://en.wikipedia.org/wiki/Drill_bit#Center_bits '''Centre Bits'''] were designed principally for use with a '''[[Carpenter's Brace]]''' and usually have a [https://en.wikipedia.org/wiki/Drill_bit_shank#Brace_shank '''Square Tapered Shank'''] for this purpose. | [https://en.wikipedia.org/wiki/Drill_bit#Center_bits '''Centre Bits'''] were designed principally for use with a '''[[Carpenter's Brace]]''' and usually have a [https://en.wikipedia.org/wiki/Drill_bit_shank#Brace_shank '''Square Tapered Shank'''] for this purpose. | ||
=====Features and Uses===== | |||
They have a central guide point ''(originally filed to a triangle)'', a ''spur'' to sever the wood fibres around the circumference, and a single, chisel-edge cutting blade to remove the waste. | They have a central guide point ''(originally filed to a triangle)'', a ''spur'' to sever the wood fibres around the circumference, and a single, chisel-edge cutting blade to remove the waste. | ||
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=====<div class="buyers-guide">DT Online Buyers' Guide</div>===== | |||
* '''Centre Bits''' are now largey superseded by more modern variants. | |||
{| | |||
|- | |||
| <dtamazon product="B000Y8J5OA" type="image">Faithfull HBB35 TC-Hinge Boring Bit 35 x 60mm </dtamazon> | |||
| <dtamazon product="B00VFRPJ8U" type="image">IRWIN 1921995 6X Blue Groove Stubby Wood Bit 25 mm x 4-Inch</dtamazon> | |||
|- | |||
| <dtamazon product="B000Y8J5OA" type="text">Faithfull HBB35 TC-Hinge Boring Bit 35 x 60mm </dtamazon> | |||
| <dtamazon product="B00VFRPJ8U" type="text">IRWIN 1921995 6X Blue Groove Stubby Wood Bit 25 mm x 4-Inch</dtamazon> | |||
|} | |||
[[Category:Drilling and Boring]] | [[Category:Drilling and Boring]] | ||
Revision as of 16:04, 14 May 2016
Description
Centre Bits were designed principally for use with a Carpenter's Brace and usually have a Square Tapered Shank for this purpose.
Features and Uses
They have a central guide point (originally filed to a triangle), a spur to sever the wood fibres around the circumference, and a single, chisel-edge cutting blade to remove the waste.
Note: Most wood bits will cause splitting if an attempt is made to drill straight through the material. Best practice is to drill from one side until the tip emerges on the reverse then turn the wood around and complete drilling from the other side.
DT Online Buyers' Guide
- Centre Bits are now largey superseded by more modern variants.
 
|
 
|
| Faithfull HBB35 TC-Hinge Boring Bit 35 x 60mm
|
IRWIN 1921995 6X Blue Groove Stubby Wood Bit 25 mm x 4-Inch
|