10 Best Gun Drill Bits Of 2026
Gun Drill Bits — Reviews, Recommendations & Updated Buying Guide September 2026
3Pcs HSS Step Drill Bit Set (4-12mm/4-20mm/4-32mm) with Auto
Why We Love It
VTOOLS 5 Piece Drill Bit Set For Concrete Blue (4
Why We Love It
Bosch 7-Piece Masonry Drill Bit Set (Natural Stone
Why We Love It
5 Pcs 16-30MM HSS Drill Bit Hole Saw Set Stainless High
Why We Love It
10 Pieces Masonry Drill Bit Set
Why We Love It
5 Pcs Extra Long Twist Drill Bits
Why We Love It
Bosch Metal Twist Drill Bits
Why We Love It
ECVV 8PCS Brad Point Drill Bits 3-10mm Spiral Twist Wood
Why We Love It
HSS Hex Shank Drill Bit Set
Why We Love It
Quick Pick
10 Best Gun Drill Bits Of 2026
Quick Pick
3Pcs HSS Step Drill Bit Set (4-12mm/4-20mm/4-32mm) with Auto Center Punch – Durable Bits for Sheet Metal, Steel, Wood, Plastic & More – For Gun/Bench Drills, Use Coolant for Longer Life
VTOOLS 5 Piece Drill Bit Set For Concrete Blue (4, 5, 6, 8, And 10 mm), VT3105
Bosch 7-Piece Masonry Drill Bit Set (Natural Stone, Ø 3/4/5/5.5/6/7/8 mm, Accessories for Impact Drills)
5 Pcs 16-30MM HSS Drill Bit Hole Saw Set Stainless High Speed Steel Metal Alloy
10 Pieces Masonry Drill Bit Set, Concrete Drill Bit Set Carbide Drill Bit Collection Precision Carbide Drills Versatile Drill Bit Set for Wood, Tile, Brick, Glass, Concrete, Ceramic, Cinder Block
5 Pcs Extra Long Twist Drill Bits, 150mm HSS Wood Drill Bit Set for Plastic Steel Plate - 2mm 3mm 3.5mm 4mm 5mm Straight Shank
Bosch Metal Twist Drill Bits, 2608577178, Pack Of 10
ECVV 8PCS Brad Point Drill Bits 3-10mm Spiral Twist Wood Drill Bits Set Electric Drill Accessories High Speed Steel Drill Bit for Wood
HSS Hex Shank Drill Bit Set, Black & Gold Coated, Quick-Change Twist Drill Bits for Wood, Metal, Steel & Plastic, 1/16"–1/4" Handheld Electric Drill Screwdriver Hole Expanding Bit Set (13pcs)
Buying Guide: Gun Drill Bits
📋 Table of Contents
1What's the difference between solid carbide and high-speed steel gun drills?
Solid carbide gun drills last longer and handle high-speed drilling better, making them ideal for production work, while high-speed steel versions are cheaper and work fine for occasional use or manual machines. Choose carbide if you're drilling regularly or need precision; HSS is better for budget-conscious buyers doing lighter jobs.
2How do I know what diameter gun drill I need?
Gun drills come in standard sizes, typically from 2mm to 20mm, so measure your hole requirement first and match it to the available sizes your supplier stocks. If you need a non-standard size, expect longer lead times or custom ordering.
3What's the difference between through-coolant and non-coolant gun drills?
Through-coolant drills have channels that deliver cooling fluid directly to the drill tip, improving chip evacuation and extending tool life, especially for deep holes. Non-coolant versions are simpler and cheaper but require external cooling and won't perform as well on demanding jobs.
4When is it worth paying more for premium gun drill bits?
Premium brands with better coatings and tighter tolerances pay off when you're drilling hard materials like stainless steel or doing high-volume production where tool breakage costs money. For occasional hobby or light workshop use, budget options will serve you fine.
5What specs should I check before buying a gun drill?
Check the flute length (drilling depth capacity), material compatibility (what metals it's designed for), shank type (to match your machine), and whether it needs coolant or works dry. Also verify the point angle and web thickness, as these affect performance on different material types.
How we choose
Our editors are people who genuinely love testing and writing about products. We compare each product's real-world usability and strengths, then distill what matters most into our own "Why We Love It" points — so you get an honest, at-a-glance sense of what counts before you buy.