Best Hex Drill Bits in 2026

135°Split point, straight shank, sharp spiral groove, coffee bronze coating.

3/16" inch Diameter 4.8mm for reference. Real exact size is 4.76mm. 3/16" equals to 4.7625mm, this drill bit diameter is almost real 3/16".

Flute length 2 1/16"(52mm), total length 3 7/16"(86mm).

13 PACK OF 1/4" COBALT DRILL BITS - 1/4" Diameter with a Flute Length of 2-3/4" and Total length of 4"

M35, FULLY GROUND, 135° SPLIT POINT - Our Drill Bits Contain 5% Cobalt, Are Fully Grounded for a Precision Drilling Diameter. 135° Split Point Design Makes it Easier to Drill Repeated Holes in Harder Materials.

PLASTIC STORAGE CASE INCLUDED - Incredibly Tough and Durable Plastic Case. Perfect for Keeping Your Cobalt Drill Bits Neatly Organized and Safe.

Designed for drilling abrasive materials when drilling accuracy must be maintained

Can be used in high temperature drilling applications

Used on materials such as cast iron, non-ferrous alloys, high silicon aluminum, copper, plastics, bronze, hard rubber, plexiglass, and other similar materials

【High Quality】M35 Cobalt steel precision ground drill bits for extra durability and long lifetime

【Efficient Design】Stubby drill bits measure from 1.84 to 2.32-inch only, allowing access to hard-to-reach and tight spaces. 135° split point two-blades special design drill tip (1/8-inch and larger) for perfect self-centering and fast drilling

【Multi-Purpose Use】Suitable for drilling stainless steel and various hardened metals such as cast iron, titanium, bronze, aluminium, etc. All drill bits come with one piece 1/4-inch hex shank compatible with standard and quick change chucks and drivers

SIZE INCLUDED: Drill Set 99 Pcs include 1/16" 16 Piece, 5/64" 16 Piece, 3/32" 15 Piece, 7/64" 10 Piece, 1/8" 10 Piece, 9/64“ 8 Piece, 5/32" 8 Piece, 11/64" 3 Piece, 3/16" 3 Piece, 13/64" 2 Piece, 7/32" 2 Piece, 1/4" 2 Piece ,5/16 2 Piece, 3/8" 2 Piece. which can make your work easier.

STRENGTH & DURABILITY: Made with HSS , Rockwall Hardness Level. Each of our HSS drill b has been coated in Titanium as it is well reported to resist heat and friction giving you a quality finish and a longer lasting drill bit. Quality is as good as any major brand such as drill bit set.

METAL STORAGE BOX: Your order comes in a handy metal box with handle for all 99 bits, each drill bits have its own clearly labelled designated storage spot which makes it the best craftsman drill bit kit.

【High Quality】M35 Cobalt steel precision ground jobber drill bits for extra durability and long lifetime

【Efficient Design】135° split point two-blades special design drill tip (7/64-inch and larger) for perfect self-centering and fast drilling

【Multi-Purpose Use】Suitable for drilling stainless steel and various hardened metals such as cast iron, titanium, bronze, aluminium, etc.

Material and Treatment: Cobalt high speed steel with Titanium coating. Dark bronze-colored or bronze-colored. It's more durable and wear resistant.

Shank Advantage: Large bit has 3-sided shank and small bits have hex shank to prevent slip in drill chuck

Efficient Drilling: Two-flutes design gives faster and smoother cutting.

Quality high speed steel ensures the bits super hard, sharp and cutting effectively with impressive cutting performance in metal, plastic, and wood etc with long tool life

All drill dimensional & tolerances conform to ASME/ANSI B94.11M drill standards or USCTI - United States Cutting Tool Institute (formerly MCTI)

Fully ground process ensures excellent chips moving, and 135 deg chisel angle with split point provide accuracy start for quick penetration without Walking and less Logging

Quality high speed steel ensures the bits super hard, sharp and cutting effectively with impressive cutting performance in metal, plastic, and wood etc with long tool life

All drill dimensional & tolerances conform to ASME/ANSI B94.11M drill standards or USCTI - United States Cutting Tool Institute (formerly MCTI)

Fully ground process ensures excellent chips moving, and 135 deg chisel angle with split point provide accuracy start for quick penetration without Walking and less Logging

High-speed steel (HSS) containing cobalt is a good combination of toughness and hardness, for use on drilling through hard substances

Gold oxide, retains cutting fluid and prevent chip to tool welding

135-degree split point angle is self-centering, reduces walking, good for hard material and reduces pressure on cutting edges

Quality high speed steel ensures the bits super hard, sharp and cutting effectively with impressive cutting performance in metal, plastic, and wood etc with long tool life

All drill dimensional & tolerances conform to ASME/ANSI B94.11M drill standards or USCTI - United States Cutting Tool Institute (formerly MCTI)

Fully ground process ensures excellent chips moving, and 135 deg chisel angle with split point provide accuracy start for quick penetration without Walking and less Logging

Quality high speed steel ensures the bits super hard, sharp and cutting effectively with impressive cutting performance in metal, plastic, and wood etc with long tool life

All drill dimensional & tolerances conform to ASME/ANSI B94.11M drill standards or USCTI - United States Cutting Tool Institute (formerly MCTI)

Fully ground process ensures excellent chips moving, and 135 deg chisel angle with split point provide accuracy start for quick penetration without Walking and less Logging

Quality high speed steel ensures the bits super hard, sharp and cutting effectively with impressive cutting performance in metal, plastic, and wood etc with long tool life

All drill dimensional & tolerances conform to ASME/ANSI B94.11M drill standards or USCTI - United States Cutting Tool Institute (formerly MCTI)

Fully ground process ensures excellent chips moving, and 135 deg chisel angle with split point provide accuracy start for quick penetration without Walking and less Logging

Quality high speed steel ensures the bits super hard, sharp and cutting effectively with impressive cutting performance in metal, plastic, and wood etc with long tool life

All drill dimensional & tolerances conform to ASME/ANSI B94.11M drill standards or USCTI - United States Cutting Tool Institute (formerly MCTI)

Fully ground process ensures excellent chips moving, and 135 deg chisel angle with split point provide accuracy start for quick penetration without Walking and less Logging

Combination Drill and Tap Bit: Thread Size: M6 x 1; Hex Shank Size: 1/4". Combination drill and tap bit set can complete hole drilling, tapping, deburring and countersinking. One-step operation greatly saves processing steps and improves working efficiency.

Wide Applications: Suitable for processing blind holes. Used for tapping aluminum, die steel, stainless steel, bronze, hard plastics, etc.. Recommended feed rate: general steel: 6-15m/min; harder steel: 5-10m/min; stainless steel: 2-7m/min; cast iron: 8-10m/min.

Features: Self-centering point, do not need assistant center drilling or center punching. Quick change 1/4-inch hex shank can be used on power tools more easily and securely. A tapered end on hex shank can prevent excessive tapping.

Tap and Drill Bit: Tap thread size: M3 x 0.5, drill bit diameter: 2.5mm / 0.1".High-speed steel tool has high hardness and toughness for wear resistance. Good for general purpose applications.

Spiral Flute Tap: Spiral flute design, upward chip removal, right hand thread cutting. For processing blind holes and sticky materials, tapping aluminum, die steel, stainless steel, bronze, plastics. Titanium coating provides excellent corrosion resistance and wear resistance.

Twist Drill Bit: Spiral chip space design for fast and clean chip removal. Sharp cutting edge provides smooth cutting and no glitches. Cobalt high speed steel tool features high hardness (HRC65-66) and high red hardness, high wear resistance

TITANIUM | HIGH-SPEED STEEL: Made from 100% High-Speed Steel Construction with Titanium Coating for Proven Capability and Durability. Be equipped with every drill bit size you need in our handy and portable HSS metal drill bit kit. You will find long drill bits as well as small bits inside the metal storage box.

STRENGTH & DURABILITY: Made with HSS , Rockwall Hardness Level. Each of our HSS metric drill has been coated in Titanium as it is well reported to resist heat and friction giving you a quality finish and a longer lasting drill bit. Quality is as good as any major brand such as drill bit set.

METAL STORAGE BOX: Your order comes in a handy metal box with handle for all 99 Pcs bits, each drill bits have its own clearly labelled designated storage spot which makes it the best craftsman drill bit kit.

Quality high speed steel ensures the bits super hard, sharp and cutting effectively with impressive cutting performance in metal, plastic, and wood etc with long tool life

All drill dimensional & tolerances conform to ASME/ANSI B94.11M drill standards or USCTI - United States Cutting Tool Institute (formerly MCTI)

Fully ground process ensures excellent chips moving, and 135 deg chisel angle with split point provide accuracy start for quick penetration without Walking and less Logging

Tapered neck design significantly reduces drill & tap breakage

The 135 degree split point drill permits holes to be cut at high speeds. Taping caution must be adhered to with slower speed.

Superior strength durability provided by high Molybdenum content and high speed steel with functional black and gold surface treatment that holds lubricant for smoother drilling.

Quality high speed steel ensures the bits super hard, sharp and cutting effectively with impressive cutting performance in metal, plastic, and wood etc with long tool life

All drill dimensional & tolerances conform to ASME/ANSI B94.11M drill standards or USCTI - United States Cutting Tool Institute (formerly MCTI)

Fully ground process ensures excellent chips moving, and 135 deg chisel angle with split point provide accuracy start for quick penetration without Walking and less Logging

Quality high speed steel ensures the bits super hard, sharp and cutting effectively with impressive cutting performance in metal, plastic, and wood etc with long tool life

All drill dimensional & tolerances conform to ASME/ANSI B94.11M drill standards or USCTI - United States Cutting Tool Institute (formerly MCTI)

Fully ground process ensures excellent chips moving, and 135 deg chisel angle with split point provide accuracy start for quick penetration without Walking and less Logging

Quality high speed steel ensures the bits super hard, sharp and cutting effectively with impressive cutting performance in metal, plastic, and wood etc with long tool life

All drill dimensional & tolerances conform to ASME/ANSI B94.11M drill standards or USCTI - United States Cutting Tool Institute (formerly MCTI)

Fully ground process ensures excellent chips moving, and 135 deg chisel angle with split point provide accuracy start for quick penetration without Walking and less Logging

Quality high speed steel ensures the bits super hard, sharp and cutting effectively with impressive cutting performance in metal, plastic, and wood etc with long tool life

All drill dimensional & tolerances conform to ASME/ANSI B94.11M drill standards or USCTI - United States Cutting Tool Institute (formerly MCTI)

Fully ground process ensures excellent chips moving, and 135 deg chisel angle with split point provide accuracy start for quick penetration without Walking and less Logging

Product Size: The Carbide Inserted V Groove 90° Router Bits, Shank 1/4"（6.35mm; Cut Diameter: 11/16"(18mm), Rotation Replacement Insert Knive:12mm*12mm*1.5mm, Designed for v-Grooving, signmaking, lettering, miter folding and chamfering your material to a perfect joint. Search Blade: B0BN465DH7

Good Quality: This V Groove Router Bits 1/4 inch shank is made of C3(YG6X) alloy blades, 45# solid hardened steel body. Hardness is HRA92, higher hardness and wear resistance, 3 times service life than the normal alloy YG8/HRA89. The surface of the cutter body sprayed with plastic, improves surface hardness and reduces surface wear.

Replaceable Inserts: The V Groove Router Bits feature solid carbide insert knives with 4 cutting edges, Rotate the knife to expose a fresh cutting edge, You can replace the router bit inserts, rather than replacing the entire drill bit. Compared with brazed router bits, it is a cost-effective solution.

Quality high speed steel ensures the bits super hard, sharp and cutting effectively with impressive cutting performance in metal, plastic, and wood etc with long tool life

All drill dimensional & tolerances conform to ASME/ANSI B94.11M drill standards or USCTI - United States Cutting Tool Institute (formerly MCTI)

Fully ground process ensures excellent chips moving, and 135 deg chisel angle with split point provide accuracy start for quick penetration without Walking and less Logging

1.Classic HSS construction with titanium coating for capability and durability. The cutting edge is hardened and honed for sharpness, chatter-free design with staggered cutting teeth ensure the precise countersinking and hole smooth clean. It can be used multiple times without deformation.

2.Your order comes in a handy metal box with handle for all 99 bits, each drill bits have its own clearly labelled designated storage spot which makes it the best craftsman drill bit kit.

3.Process Treatment: Titanium coated surface prevent rusting,which increase the hardness of the drill bit and reduces heat buildup, make the twist drill bit more wear-resisting for longer life.

Tap and Drill Bit: Tap thread size: M5 x 0.8, drill bit diameter: 4.2mm / 0.17". High-speed steel tool has high hardness and toughness for wear resistance. Good for general purpose applications.

Spiral Flute Tap: Spiral flute design, upward chip removal, right hand thread cutting, fast tapping with accuracy. Suitable for processing blind holes and sticky materials, tapping aluminum, die steel, stainless steel, bronze, hard plastics.

Twist Drill Bit: Spiral chip space design for fast and clean chip removal. Sharp cutting edge provides smooth cutting and no glitches. Titanium coating provides excellent corrosion resistance and wear resistance.

Tap and Drill Bit: Tap thread size: M2 x 0.4, drill bit diameter: 1.6mm / 0.06". High-speed steel tool has high hardness and toughness for wear resistance. Good for general purpose applications.

Spiral Flute Tap: Spiral flute design, upward chip removal, right hand thread cutting, fast tapping with accuracy. Suitable for processing blind holes and sticky materials, tapping aluminum, die steel, stainless steel, bronze, hard plastics.

Twist Drill Bit: Spiral chip space design for fast and clean chip removal. Sharp cutting edge provides smooth cutting and no glitches. Titanium coating provides excellent corrosion resistance and wear resistance.

Tap and Drill Bit: Tap thread size: 5/16-24 UNF, drill bit diameter: 6.9mm / 0.27". High-speed steel tool has high hardness and toughness for wear resistance.

Straight Flute Tap: Straight flute design, downward chip removal. Left hand thread cutting, fast tapping with accuracy. Suitable for processing through holes. For drilling and tapping aluminum, die steel, stainless steel, bronze, hard plastics

Twist Drill Bit: Spiral chip space design for fast and clean chip removal. Sharp cutting edge provides smooth cutting and no glitches. Titanium coating provides excellent corrosion resistance and improves wear resistance.

【High Quality】M35 Cobalt steel precision ground jobber drill bits for extra durability and long lifetime

【Efficient Design】135° split point multi-blades special design drill tip (7/64-inch and larger) for perfect self-centering and fast drilling. 1/4-inch hex shank compatible with standard and quick change chucks drivers and impact drilvers.

【Multi-Purpose Use】Suitable for drilling stainless steel and various hardened metals such as cast iron, titanium, bronze, aluminium, etc.