Best Diablo Self Feed Drill Bits in 2026

Product 1: MULTI PURPOSE: Use For Drilling Pilot Holes, Installing Hinges, Strike Plates and Other Hardware

Product 2: Four-piece set includes no. 6, 8, 10 and 12 hex shank screw pilot bits

Product 2: Countersink screw pilot bits – designed for hex shanks for countersinking precision pilot holes

Product 2: One-step operation – provides countersinking and counterboring in one operation

Product 2: Replaceable drill bits – for longer accessory life

The grooved hex shank helps prevent slipping in the drill chuck or bit extension

Fits virtually any standard 1/4-inch quick-change chucks, including impact drills

IRWIN SPEEDBOR drill bits use a tri-flute design for faster chip ejection and less binding

This 7/8-inch drill bit has cutting spurs with 3 cutting edges for faster, cleaner holes

A full screw tip allows the drill bit to self-feed for ease of drilling

The grooved hex shank helps prevent slipping in the drill chuck or bit extension

Fits virtually any standard 1/4-inch quick-change chucks, including impact drills

QUALITY VALUE SET - Our Countersink Drill is manufactured in China which allow us to have a competitive price, but the JNB Pro Requirements as the High Speed Steel M2 (6542 grade) Drill Bit and Carbon Steel #45 Cutters make the product have better or same quality as USA made. If for any reason your are not satisfied with the product you are invited to return or have product replaced. Your satisfaction is our goal. Broca Avellanadora Para Madera

1/4" quick change shank fits standard chucks and impact drills

Grooved hex shank prevents slipping in drill chuck. Whether you are a plumber or electrician or a DIYer. This jobber drill bits set is handy to have in your tool kit. Get that project done!

Replaceable threaded tip and hex key included

Black oxide finish

Aggressive feed screw design allows the bit to to pull through the wood faster, resulting in faster drilling

Replacement blades made with hardened steel increases bit life

Size and model number engraved on each bit

Milwaukee 48-25-5120 1-3/8in Switchblade Selfeed Bits come with: 1-3/8in Switchblade Selfeed Bit, 2 replaceable blades, 2 Feed Screws, 2 Set Screws, and One (1) Hex Wrench

Package Dimensions: 19.558 L x 5.334 H x 8.89 W (centimeters)

INSIDE CUTTING PLANE – Produces clean smooth holes.

HEAT TREATED ALLOY – Maximum durability and wear resistance.

RESHARPENABLE – Longer bit life-Less time and money buying a new bit. REPLACEABLE FEED SCREW – Effortlessly pulls bit through material. Standard Equipment: Self-feed Bits: 1-1/2", 2 ", 2-9/16 "; (6) Feed Screws; (3) Set Screws; and Hex Key

REPLACEABLE FEED SCREW – Effortlessly pulls bit through material.

Standard Equipment: Self-feed Bits: 1-1/2", 2 ", 2-9/16 "; (6) Feed Screws; (3) Set Screws; and Hex Key

Self-feed screw for faster drilling - Includes replacement screw and hex key

Diameter: 1-3/8-inch, Length: 5-inch, Shank: 7/16-inch quick-change hex power shank, For pipe entrance size: 1-inch, For tubing entrance size: 1-1/4-inch

Package dimension : 3.25" L x 2.188" W x 4.0" H

Aggressive feed screw design allows the bit to to pull through the wood faster, resulting in faster drilling

Replacement blades made with hardened steel increases bit life

Size and model number engraved on each bit

Milwaukee 48-25-5135 2in Switchblade Selfeed Bits come with: 2in Switchblade Selfeed Bit, 2 replaceable blades, 2 Feed Screws, 2 Set Screws, and One (1) Hex Wrench

Precision milled shank eliminates run out and wobble

Forged in one piece from high carbon steel for Maximum strength under tough drilling conditions

The four-slot drills are suitable for deep wood operations, which increase the speed/ the chip removal capacity/ the drilling depth by nearly twice compared with common openers, help to improve work efficiency

Suitable for electric screwdriver of 1/4 hex shank power tool and wood depth operation. Ideal For DIY, home and general building, woodworking, engineering using. A necessary accessory set for woodworking drills and impact drivers

Titanium Coating: Titanium coating provides excellent corrosion resistance, greatly improves wear resistance and hardness, and reduces the coefficient of friction. High speed steel tool has high hardness and toughness, wear resistance and heat resistance.

Tips: Use on drilling machines, tapping machines, CNC and milling machines. Use with tapping oil to get higher quality threads and more durable taps. Machine taps are suggested to be used with tap collets with overload protection.

Drill bits have 3 cutting edges that are hardened for durability and long life in tough materials

Drill bits feature replaceable screw-point tips that pull the drill bit fast for clean, true holes

Drill bit has an aggressive screw pitch

7/16-inch hex impact shank reduces slipping in standard chucks

IRWIN drill bit extension is compatible with most 7/16-inch impact drills

Aggressive feed screw design allows the bit to to pull through the wood faster, resulting in faster drilling

Replacement blades made with hardened steel increases bit life

Size and model number engraved on each bit

Milwaukee 48-25-5125 1-1/2in Switchblade Selfeed Bits come with: 1-1/2in Switchblade Selfeed Bit, 2 replaceable blades, 2 Feed Screws, 2 Set Screws, and One (1) Hex Wrench

Multiple spurs on the outside diameter increase the cutting performance of the blade

Packaged in a heavy-duty plastic tube | Bit Size: 1.25” | Length: 4”

Double sided chip removal design, smooth chip removal.

Universal 6.35mm hexagonal handle, stable clamping and not easy to slip.

Easy to Install: According to the hardness of the wood, you can choose different centering drill, take the screw apart and you can replace the drill easily. At the same time, change bits fast which one-handed load and release.

High Quality: High speed steel 4241 drill bit is sharper and has a longer service life than traditional one.