Best Zinc Jobber 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

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.

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

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

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

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

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.

【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.