You don’t have to understand any particular concept of drill bit or drill bit chat analysis to use this trick.įollow these easy steps to choose the precise drill bit for making a hole for a 3/8 lag bolt. Lucky for you, I have a simple trick to help you select the correct size drill bit from your drill bit set.
Drill bits how to#
How to Choose the Appropriate Drill Bit for Pilot Holes? Drill bits are required for other thread-cutting, tapping, thread-forming, or thread-rolling screws.
They can drill their own pilot holes as they advance into the material. However, self-drilling screws do not require a drill bit. For instance, hardwoods like mahogany require well-suited drill bits, while softwoods like cypress can be drilled with a regular drill bit. The type of drill bit also matters depending on the wood you are drilling. You will have to re-drill another hole or switch the material. If you use a smaller or larger drill bit to make the pilot hole, the lag bolt won’t fit snugly into the hole. Drill Bits & Sets BlueSpot Tools Multi Holesaw Sets Bahco Bi-Metal Holesaws Bahco Variable Pitch Holesaws Bahco Superior Bahco 11152 Arbors - 11mm Shank (. For a 3/8 lag bolt, use a 21/64 inch drill bit to make the pilot hole – you should get a 0.3281 inches pilot hole size.
Drill bits install#
To install a lag bolt, drill a pilot hole with a drill bit first. What Size Drill Bit for a 3/8 Lag Bolt – Getting Started Using the drill bit, you should get a 0.3281 inches pilot hole size.Ĭheck the detailed explanation and illustration below. In general, for a 3/8 lag bolt, use a 21/64 inches drill bit to make the pilot hole.
As a contractor, I needed the proper drill bits to pre-drill holes to install tapping screws or lag bolts because using the right drill bit helps you fit your lag bolt snugly into whichever material you are drilling. Thread-cutting or thread-forming screws require pilot holes to get started. In this article, I’ll help you to identify the appropriate drill bit size for your 3/8 lag bolt.
Step 1: Get Your Drill Bit Set and The Lag Bolt.How to Choose the Appropriate Drill Bit for Pilot Holes?.What Size Drill Bit for a 3/8 Lag Bolt – Getting Started.
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