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118° Premium HSS 4341 Drill Bits for Metal
118° Premium HSS 4341 Drill Bits for Metal - Image 2
118° Premium HSS 4341 Drill Bits for Metal - Image 3

118° Premium HSS 4341 Drill Bits for Metal

Material: High Speed Steel
Point Angle: 118°
Shank Type : Round Shank
Flute Type: Type N aprox. 30 Grad
Finish Type : Titanium & Silver

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Why Choose Us ?

  • Reliable Manufacturing Experience
  • Strict Quality Control
  • Flexible Customization & Support

 

Premium HSS 4341 High-Speed Steel

HSS 4341 is a high-performance industrial-grade high-speed steel, optimized for general-purpose metal drilling:
  • Excellent Red Hardness & Wear Resistance: Maintains cutting edge sharpness and hardness under high-speed drilling, resisting edge chipping and premature wear for extended tool life
  • Superior Toughness & Impact Resistance: Reduces breakage risk in heavy-duty, intermittent drilling operations, minimizing unplanned downtime and tool replacement costs
  • Optimal Cost-Performance Ratio: Delivers 2-3x longer service life than standard HSS 4241 drill bits at a competitive price point, perfect for bulk industrial applications

118° Standard Point Angle

The industry-standard 118° split point is engineered for universal metal drilling:
  • Self-Centering Capability: Eliminates drill wander and the need for pre-punching, ensuring precise, straight hole placement from the first contact
  • Balanced Cutting Performance: Optimized for low/medium carbon steel, alloy steel, cast iron, and non-ferrous metals, delivering smooth penetration and clean, burr-free holes
  • Wide Compatibility: Suitable for both hand-held power drills and stationary drilling equipment, meeting diverse workshop and production needs

Type N 30° Flute Geometry

The Type N (approx. 30° helix angle) flute design is the universal standard for general-purpose metal drilling:
  • Efficient Chip Evacuation: Optimized flute geometry creates smooth channels for fast chip removal, preventing clogging and heat buildup during drilling
  • Stable Cutting & Reduced Vibration: Minimizes radial runout, ensuring consistent hole diameter and surface finish, even in deep-hole drilling
  • Versatile Material Adaptability: Performs reliably across a wide range of metal materials, eliminating the need for multiple specialized drill bit types

Titanium & Silver Dual Finish

The premium titanium (gold) and silver dual surface treatment delivers critical functional benefits:
    • Enhanced Hardness & Wear Resistance: Titanium coating boosts surface hardness, further extending tool life and reducing friction during cutting
    • Improved Corrosion Resistance: Silver finish provides excellent rust protection, extending shelf life and service life in harsh workshop environments
    • Reduced Cutting Heat: Low-friction coating dissipates heat faster, protecting the cutting edge and enabling higher drilling speeds for improved productivity

       

      Our HSS 4341 drill bits are the trusted choice for:

 

 

  • General metal fabrication & sheet metal processing
  • Automotive & machinery component manufacturing
  • Construction & structural steel drilling
  • Maintenance, Repair & Operations (MRO) for factories and workshops
  • Hardware retail & tool kit assembly
  • DIY & professional tool distribution

 

Application
HSS Grade
Iron
Aluminum
Carbon Steel
Tile
Plastic
Stainless Steel
4241
YES
YES
NO
NO
YES
NO
4341 YES YES YES NO YES YES
6542(M2)
YES
YES
YES
NO
YES
GOOD
M35 (Co 5%)
YES
YES
YES
NO
YES
VERY GOOD

 

DESCRIPTION OF HSS C W Mo Cr V Co Si Mn P S
% % % % % % % % % %
W4Mo3Cr4V(4341) 0.88-0.98 3.5-4.5 2.5-3.5 3.8-4.4 1.2-1.8 0.5-1.2 0.2-0.4 <=0.03 <=0.03
W6Mo5Cr4V2(M2) 0.8-0.9 5.5-6.75 4.5-5.5 3.8-4.4 1.75-2.2 – 0.2-0.4 0.2-0.4 <=0.03 <=0.03
W6Mo5Cr4V2Co5(M35) 0.9-0.95 5.5-6.5 4.5-5.5 3.8-4.4 1.75-2.2 4.5-5.5 0.2-0.4 0.2-0.4 <=0.03 <=0.03
W2Mo9Cr4V2Co8(M42) 1.05-1.15 1.15-1.85 9.0-10.0 3.5-4.25 0.95-1.25 7.75-8.75 0.15-0.65 0.15-0.4 <=0.02 <=0.025

 

Metric size

DIA.(mm)
OVERALL LENGTH(mm)
WORKING LENGTH(mm)
1
34
12
1.5
43
20
2
49
24
2.5
57
30
3
61
33
3.5
70
39
4
75
43
4.5
80
47
5
86
52
5.5
93
57
6
93
57
6.5
101
63
7
109
69
7.5
109
69
8
117
75
8.5
117
75
9
125
81
9.5
125
81
10
133
87
10.5
133
87
11
142
94
11.5
142
94
12
151
101
12.5
151
101
13
151
101
13.5
160
108
14
160
108
14.5
169
114
15
169
114
15.5
178
120
16
178
120
16.5
184
125
17
184
125
17.5
191
130
18
191
130
18.5
198
135
19
198
135
19.5
205
140
20
205
140

Imperial size

DIA. OVERALL LENGTH (INCH) WORKING LENGTH (INCH) DIA. OVERALL WORKING LENGTH (INCH) DIA. OVERALL WORKING LENGTH (INCH)
1/64″ 3/4″ 3/16″ 15# 3-3/8″ 2-3/16″ 61# 1-/5/8″ 11/16″
1/32″ 1-3/8″ 1/2″ 16# 3-3/8″ 2-3/16″ 62# 1-1/2″ 5/8″
3/64″ 1-3/4″ 3/4″ 17# 3-3/8″ 2-3/16″ 63# 1-1/2″ 5/8″
1/16″ 1-7/8″ 7/8″ 18# 3-1/4″ 2-1/8″ 64# 1-1/2″ 5/8″
5/64″ 2″ 1″ 19# 3-1/4″ 2-1/8″ 65# 1-1/2″ 5/8″
3/32″ 2-1/4″ 1-1/4″ 20# 3-1/4″ 2-1/8″ 66# 1-3/8″ 1/2″
7/64″ 2-5/8″ 1-1/2″ 21# 3-1/4″ 2-1/8″ 67# 1-3/8″ 1/2″
1/8″ 2-3/4″ 1-5/8″ 22# 3-1/8″ 2″ 68# 1-3/8″ 1/2″
9/64″ 2-7/8″ 1-3/4″ 23# 3-1/8″ 2” 69# 1-3/8″ 1/2″
5/32″ 3-1/8″ 2″ 24# 3-1/8″ 2″ 70# 1-1/4″ 3/8″
11/64″ 3-1/4″ 2-1/8″ 25# 3″ 1-7/8” 71# 1-1/4″ 3/8″
3/16″ 3-1/2″ 2-5/16″ 26# 3″ 1-7/8″ 72# 1-1/8″ 5/16″
13/64″ 3-5/8″ 2-7/16″ 27# 3” 1-7/8″ 73# 1-1/8″ 5/16″
7/32″ 3-3/4″ 2-1/2″ 28# 2-7/8″ 1-3/4″ 74# 1″ 1/4″
15/64″ 3-7/8″ 2-5/8″ 29# 2-7/8″ 1-3/4″ 75# 1″ 1/4″
1/4″ 4″ 2-3/4″ 30# 2-3/4″ 1-5/8″ 76# 7/8″ 3/16″
17/64″ 4-1/8″ 2-7/8″ 31# 2-3/4″ 1-5/8″ 77# 7/8″ 3/16″
9/32″ 4-1/4″ 2-15/16″ 32# 2-3/4″ 1-5/8″ 78# 7/8″ 3/16″
19/64″ 4-3/8″ 3-1/16″ 33# 2-5/8″ 1-1/2″ 79# 3/4″ 1/8″
5/16″ 4-1/2″ 3-3/16″ 34# 2-5/8″ 1-1/2″ 80# 3/4″ 1/8″
21/64″ 4-5/8″ 3-5/16″ 35# 2-5/8″ 1-1/2″ A 3-/7/8″ 2-5/8″
11/32″ 4-3/4″ 3-7/16″ 36# 2-1/2″ 1-7/16″ B 4″ 2-3/4″
23/64″ 4-7/8″ 3-1/2″ 37# 2-1/2″ 1-7/16″ C 4″ 2-3/4″
3/8″ 5″ 3-5/8″ 38# 2-1/2″ 1-7/16″ D 4″ 2-3/4″
25/64″ 5-1/8″ 3-3/4″ 39# 2-3/8″ 1-3/8” E 4″ 2-3/4″
13/32″ 5-1/4″ 3-7/8″ 40# 2-3/8″ 1-3/8″ F 4-/1/8″ 2-7/8″
27/64″ 5-3/8″ 3-15/16″ 41# 2-3/8″ 1-3/8″ G 4-/1/8″ 2-7/8″
7/16″ 5-1/2″ 4-1/16″ 42# 2-1/4″ 1-1/4″ H 4-/1/8″ 2-7/8″
29/64″ 5-5/8″ 4-3/16″ 43# 2-1/4″ 1-1/4″ I 4-1/8” 2-7/8″
15/32″ 5-3/4″ 4-5/16″ 44# 2-1/8″ 1-1/8″ J 4-/1/8″ 2-7/8″
31/64″ 5-7/8″ 4-3/8″ 45# 2-1/8″ 1-1/8″ K 4-/1/4″ 2-15/16″
1/2″ 6″ 4-1/2″ 46# 2-1/8″ 1-1/8″ L 4-/1/4″ 2-15/16″
1# 3-7/8″ 2-5/8″ 47# 2″ 1″ M 4-3/8″ 3-1/16″
2# 3-7/8″ 2-5/8″ 48# 2″ 1″ N 4-3/8″ 3-1/16″
3# 3-3/4″ 2-1/2″ 49# 2″ 1″ O 4-1/2″ 3-3/16″
4# 3-3/4″ 2-1/2″ 50# 2″ 1″ P 4-5/8″ 3-5/16″
5# 3-3/4″ 2-1/2″ 51# 2″ 1″ Q 4-3/4″ 3-7/16″
6# 3-3/4″ 2-1/2″ 52# 1-7/8″ 7/8″ R 4-3/4″ 3-7/16″
7# 3-5/8″ 2-7/16″ 53# 1-7/8″ 7/8″ S 4-7/8″ 3-1/2″
8# 3-5/8″ 2-7/16″ 54# 1-7/8″ 7/8″ T 4-7/8″ 3-1/2″
9# 3-5/8″ 2-7/16″ 55# 1-7/8″ 7/8″ U 5″ 3-5/8″
10# 3-5/8″ 2-7/16″ 56# 1-3/4″ 3/4″ V 5″ 3-5/8″
11# 3-1/2″ 2-5/16″ 57# 1-3/4″ 3/4″ W 5-1/8″ 3-3/4″
12# 3-1/2″ 2-5/16″ 58# 1-5/8″ 11/16″ X 5-1/8″ 3-3/4″
13# 3-1/2″ 2-5/16″ 59# 1-5/8″ 11/16″ Y 5-1/4″ 3-7/8″
14# 3-3/8″ 2-3/16″ 60# 1-5/8″ 11/16″ Z 5-1/4″ 3-7/8″

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